VersionDrift
Product

Windows Server 14393.9612 → 26100.33650

246 releases · 0 breaking changes · 799 security fixes · 0 advisories fixed

799security0breaking5deprecated101feature438fix

Breaking changes

None in the release notes.

Security changes

  • security Fixes CVE-2026-96951: Windows Shell Security Feature Bypass Vulnerability in 26100.33650
  • security Fixes CVE-2026-100202: Windows Message Queuing Queue Manager Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-100219: Microsoft QUIC Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-105016: Microsoft QUIC Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-70147: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-70153: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-96934: Windows DHCP Server Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-97814: Windows Text Shaping Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-100220: Windows Media Video Decoder Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-102214: Windows Hyper-V Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-102225: Windows Text Shaping Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-105733: Windows Hyper-V Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-108467: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-70250: Windows DHCP Client Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-83934: Windows GDI+ Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-88073: Windows Graphics Kernel Elevation of Privilege Vulnerability in 26100.33650
  • security Fixes CVE-2026-96913: Windows Kernel Elevation of Privilege Vulnerability in 26100.33650
  • security Fixes CVE-2026-96914: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability in 26100.33650
  • security Fixes CVE-2026-96952: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-108457: Microsoft Windows PDF Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-108460: Windows Message Queuing Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-69802: Network Device Enrollment Service (NDES) Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-70187: Windows Remote Desktop Services Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-70229: Windows Active Directory Domain Services Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-88117: Windows DHCP Server Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-88119: Windows DHCP Server Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-88120: Windows DHCP Server Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-88171: Windows DHCP Server Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-88174: Windows Deployment Services Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-100215: Microsoft Graphics Component Remote Code Execution Vulnerability in 26100.33650
  • security Fixes CVE-2026-108130: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability in 26100.33650
  • security Fixes CVE-2026-108131: Active Directory Federation Services (AD FS) Spoofing Vulnerability in 26100.33650
  • security Fixes CVE-2026-96222: Active Directory Federation Services (AD FS) Spoofing Vulnerability in 26100.33650
  • security Fixes CVE-2026-108399: Windows Hyper-V Elevation of Privilege Vulnerability in 26100.33650
  • security Fixes CVE-2026-102211: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability in 26100.33650
  • security Fixes CVE-2026-83917: Windows ALPC Elevation of Privilege Vulnerability in 26100.33650
  • security Security update: includes the October 2026 Security Updates in 26100.33650
  • security [ReFS security] This update adds auditing and optional policy controls for ReFS volumes on externally attached storage devices. Auditing is enabled by default, while enforcement controls remain disabled by default to give administrators time to evaluate and prepare for future security hardening… in 26100.33650
  • security [Security] This update adds support for ML-KEM post-quantum key exchange in Transport Layer Security (TLS) 1.3, helping protect encrypted connections against future quantum-computing threats. in 26100.33650
  • security [Security] This update upgrades the version of cURL included with Windows to version 8.21.0. in 26100.33650
  • security [Emoji] This update improves security for emoji search in the Expressive Input Panel by updating the libraries used by EmojiSearchData. in 26100.33650
  • security [Distributed Key Manager (DKM)] This update automatically remediates insecure DKM container ACL configurations in AD FS by default. Administrators can opt out of automatic remediation by setting RemediateDkmAcl to 0. This change helps address an elevation of privilege vulnerability that can occur… in 26100.33650
  • security [Remote Desktop Services (known issue)] Fixed: This update addresses an issue affecting Remote Desktop Services (RDS) after installing the September 2026 Windows security update (KB5122871). In affected environments, RDS might become unstable, causing RDP connection and sign-in failures or servers… in 26100.33451
  • security Fixes CVE-2026-81963: Windows Update Stack Elevation of Privilege Vulnerability in 26100.33438
  • security Fixes CVE-2026-69579: Windows Message Queuing Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69590: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69595: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69730: Windows DNS Server Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69769: Windows HTTP Print Provider Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69829: Windows Shell Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69845: Windows DHCP Server Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-70296: Windows Imaging Component Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-72979: Windows DHCP Server Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-72982: Windows Netlogon Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-72983: Internet Connection Sharing (ICS) Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-73009: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-73010: Microsoft Failover Cluster Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-77493: Windows Graphics Component Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-78445: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69499: Windows Imaging Component Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69518: Windows Remote Desktop Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69601: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69603: Windows Hyper-V Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69676: Windows Kerberos Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69712: Windows Key Distribution Center Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69860: Windows Imaging Component Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-70203: Windows Media Player Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-70586: Windows Paint Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-72950: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-72959: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-72960: Windows Media Player Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-72986: Graphic Fonts Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-73006: DirectWrite Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-73013: Windows Imaging Component Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-73018: Graphic Fonts Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-73023: Windows Imaging Component Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-77495: Windows Imaging Component Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-77504: Microsoft Office Word Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-80083: Windows Hyper-V Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-81955: Windows Graphics Component Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69846: Windows Secure Kernel Mode Elevation of Privilege Vulnerability in 26100.33438
  • security Fixes CVE-2026-69874: Windows ALPC Elevation of Privilege Vulnerability in 26100.33438
  • security Fixes CVE-2026-69906: Windows Secure Kernel Mode Elevation of Privilege Vulnerability in 26100.33438
  • security Fixes CVE-2026-72958: Windows Credential Guard Elevation of Privilege Vulnerability in 26100.33438
  • security Fixes CVE-2026-72961: Windows Hyper-V Elevation of Privilege Vulnerability in 26100.33438
  • security Fixes CVE-2026-72962: Windows USB Video Driver Elevation of Privilege Vulnerability in 26100.33438
  • security Fixes CVE-2026-69530: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69813: Windows DNS Server Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69827: Windows DNS Server Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69858: Windows DNS Server Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-72981: IP Helper Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-72987: Windows DNS Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-77505: Windows DNS Server Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-78444: Microsoft Failover Cluster Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-78449: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-78450: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-72957: Windows Deployment Services Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-83498: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability in 26100.33438
  • security Fixes CVE-2026-69789: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69852: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69890: Windows Virtual Trusted Platform Module Elevation of Privilege Vulnerability in 26100.33438
  • security Fixes CVE-2026-72954: Windows Deployment Services Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-73017: Graphics Kernel Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-81355: Virtual Hard Disk (VHD) Miniport Driver Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-69501: Windows Secure Kernel Mode Elevation of Privilege Vulnerability in 26100.33438
  • security Fixes CVE-2026-70585: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability in 26100.33438
  • security Fixes CVE-2026-83501: Windows Virtualization-Based Security (VBS) Information Disclosure Vulnerability in 26100.33438
  • security Fixes CVE-2026-72980: Windows Hello Security Feature Bypass Vulnerability in 26100.33438
  • security Security update: includes the September 2026 Security Updates in 26100.33438
  • security Fixes CVE-2026-68820: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability in 26100.33296
  • security Fixes CVE-2026-62815: Microsoft QUIC Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-62878: Windows DNS Server Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-62893: Windows Deployment Services TFTP Server Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-65791: Windows iSCSI Target Service Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-62816: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-62817: Windows DNS Server Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-62818: Windows Active Directory Certificate Services (AD CS) Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-62822: Windows GDI+ Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-62823: Windows DHCP Server Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-62819: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-62820: Windows DNS Server Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-62889: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-65679: Windows iSCSI Target Service Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-65789: Windows DNS Server Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-65796: Windows iSCSI Target Service Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-66802: Windows Device Health Attestation (DHA) Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-71331: Windows Device Health Attestation (DHA) Remote Code Execution Vulnerability in 26100.33296
  • security Fixes CVE-2026-62890: Windows GDI+ Elevation of Privilege Vulnerability in 26100.33296
  • security Fixes CVE-2026-66799: Windows Key Guard Elevation of Privilege Vulnerability in 26100.33296
  • security Security update: includes the August 2026 Security Updates in 26100.33296
  • security Fixes CVE-2026-56155: Active Directory Federation Services Elevation of Privilege Vulnerability in 26100.33158
  • security Fixes CVE-2026-57092: Microsoft Windows VMSwitch Elevation of Privilege Vulnerability in 26100.33158
  • security Fixes CVE-2026-50518: Windows DHCP Server Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-56159: DHCP Server Service Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-56188: Windows Server Network driver Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-50380: Windows GDI+ Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-48564: DHCP Server Service Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-50370: DHCP Server Service Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-50382: DirectX Graphics Kernel Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-50444: Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability in 26100.33158
  • security Fixes CVE-2026-50474: Remote Desktop Client Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-54121: Active Directory Certificate Services Elevation of Privilege Vulnerability in 26100.33158
  • security Fixes CVE-2026-54982: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-54999: Windows TCP/IP Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-57087: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-57090: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-57094: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-58608: Windows Print Spooler Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-54128: Windows DHCP Client Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-54992: Microsoft Message Queuing Queue Manager Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-50680: Windows Hyper-V Elevation of Privilege Vulnerability in 26100.33158
  • security Fixes CVE-2026-49164: Windows Active Directory Domain Services Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-50694: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-54995: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-42982: Windows Secure Kernel Mode Elevation of Privilege Vulnerability in 26100.33158
  • security Fixes CVE-2026-49796: Windows GDI+ Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-50327: Windows Media Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-50655: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-56189: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-58542: Windows Media Remote Code Execution Vulnerability in 26100.33158
  • security Fixes CVE-2026-54127: Windows Hyper-V Elevation of Privilege Vulnerability in 26100.33158
  • security Fixes CVE-2026-50392: Windows Secure Kernel Mode Elevation of Privilege Vulnerability in 26100.33158
  • security Fixes CVE-2026-44815: DHCP Client Service Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-45657: Windows Kernel Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-47291: HTTP.sys Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-42985: Remote Desktop Client Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-45648: Windows Active Directory Domain Services Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-47289: Remote Desktop Client Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-44810: Microsoft Cryptographic Services Elevation of Privilege Vulnerability in 26100.32995
  • security Fixes CVE-2026-45607: Windows Hyper-V Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-45641: Windows Hyper-V Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-47652: Windows Hyper-V Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-42987: Windows Deployment Services (WDS) Remote Code Execution in 26100.32995
  • security Fixes CVE-2026-33828: Windows Device Health Attestation (DHA) Elevation of Privilege Vulnerability in 26100.32995
  • security Fixes CVE-2026-44803: Windows Graphics Component Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-44812: Windows Graphics Component Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-48574: Windows Media Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-42992: Remote Desktop Client Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-44799: Remote Desktop Client Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-44801: Remote Desktop Client Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-47654: Remote Desktop Client Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-48563: Remote Desktop Client Remote Code Execution Vulnerability in 26100.32995
  • security Fixes CVE-2026-47288: Windows Kerberos Key Distribution Center (KDC) Remote Code Execution in 26100.32995
  • security Fixes CVE-2026-41089: Windows Netlogon Remote Code Execution Vulnerability in 26100.32860
  • security Fixes CVE-2026-41096: Windows DNS Client Remote Code Execution Vulnerability in 26100.32860
  • security Fixes CVE-2026-40403: Windows Graphics Component Remote Code Execution Vulnerability in 26100.32860
  • security Fixes CVE-2026-35421: Windows GDI Remote Code Execution Vulnerability in 26100.32860
  • security Fixes CVE-2026-32161: Windows Native WiFi Miniport Driver Remote Code Execution Vulnerability in 26100.32860
  • security [Active Directory] Fixed: After installing the April 2026 Windows security update and restarting, domain controllers (DCs) with multi-domain forests that use Privileged Access Management (PAM), might experience startup issues. In some cases, Local Security Authority Subsystem Service (LSASS) might… in 26100.32698
  • security [Windows update installation] Fixed: A small number of Windows Server 2025 devices might fail to install the April 14, 2026, Windows security update (KB5082063). When this issue occurs, affected devices might display one of the following error messages: “Install error: 0x800F0983” or “Some update… in 26100.32698
  • security [Graphics] Fixed: This update addresses an issue where certain GPU configurations might recently have experienced a system error related to dxgmms2.sys, resulting in the KERNEL_SECURITY_CHECK_FAILURE error. in 26100.32370
  • security [Remote Desktop] Fixed: After installing the January 2026 Windows security update (KB5073379), some users experienced sign-in failures during Remote Desktop connections. This issue affected authentication steps for different Remote Desktop applications on Windows such as the Windows App. in 26100.32234
  • security [Credentials autofill] This update introduces a security hardening behavior restricting certain applications to autofill credentials during remote support sessions or automated authentication workflows. With this change, credential dialogs do not respond to virtual keyboard input from remote… in 26100.32230
  • security [WinSqlite3.dll] Fixed: The Windows core component, WinSqlite3.dll, has been updated. Previously, some security software might have detected this component as vulnerable. Note WinSqlite3.dll is a separate component from sqlite3.dll, which is found in application-specific directories and is not a… in 26100.32230
  • security [PowerShell 5.1] Invoke-WebRequest now includes a confirmation prompt with a security warning of script execution risk. You can choose to continue or cancel the request. For additional details, see CVE-2025-54100 and KB5074596: PowerShell 5.1: Preventing script execution from web content. in 26100.7462
  • security [App compatibility (known issue)] Fixed: This update addresses an issue that created unexpected User Account Control (UAC) prompts for some apps, including Autodesk AutoCAD. For more information, see Unexpected UAC prompts when running MSI repair operations after installing the August 2025 Windows… in 26100.7171
  • security [Authentication] Fixed: This update addresses an issue that affects the Local Security Authority Subsystem Service (LSASS). LSASS might stop responding during machine password changes with specific audit settings. in 26100.7171
  • security [Stability issue] This update addresses an issue observed in rare cases after installing the May 2025 security update and subsequent updates causing devices to experience stability issues. Some devices became unresponsive and stopped responding in specific scenarios. in 26100.7171
  • security [Windows Firewall (known issue)] Fixed: This update addresses an issue found in Event Viewer as Event 2042 for Windows Firewall with Advanced Security. The event appears as "Config Read Failed" with the message "More data is available." For more information about this issue, see "Error events are… in 26100.7171
  • security [Windows Server Update Services (WSUS)] Fixed: This update addresses a remote code execution (RCE) vulnerability that was identified in WSUS reporting web services. For more information about the security fix, see CVE-2025-59287. in 26100.6905
  • security [USB] Fixed: After installing the Windows security update released on October 14, 2025 (KB5066835), USB devices, such as keyboards and mice, do not function in the Windows Recovery Environment (WinRE). This issue prevents navigation of any of the recovery options within WinRE. Note that the USB… in 26100.6901
  • security New! After installing this update, File Explorer automatically disables the preview feature for files downloaded from the internet. This change is designed to enhance security by preventing a vulnerability when users preview potentially unsafe files. For details, including steps to unblock files,… in 26100.6899
  • security [Cryptography] This update enforces a security hardening improvement by requiring use of Key Storage Provider (KSP) instead of Cryptographic Service Provider {CSP) for RSA-based smart card certificates. If you experience problems with smart card authentication as a result of this design change,… in 26100.6899
  • security [Print] To meet security goals and support new print capabilities, this update transitions Windows printing components from MSVCRT to a modern Universal C Runtime Library. As a result of this change, print clients running versions of Windows prior to Windows 10, version 2004 and Windows Server,… in 26100.6584
  • security [App compatibility (known issue)] Fixed: Addresses an issue that caused non-admin users to receive unexpected User Account Control (UAC) prompts when MSI installers perform certain custom actions. These actions might include configuration or repair operations in the foreground or background,… in 26100.6584
  • security [File server] This update enabled auditing SMB client compatibility for SMB Server signing as well as SMB Server EPA. This allows customers to assess their environment and identify any potential device or software incompatibility issues before deploying the hardening measures that are already… in 26100.6584
  • security [Fix for Azure Virtual Machines with Trusted Launch disabled] This update addresses an issue that prevented some virtual machines (VMs) from starting when Virtualization-Based Security (VBS) was enabled. It affected VMs using version 8.0 (a non-default version) where VBS was offered by the host.… in 26100.4656
  • security Security update: includes the July 2025 Security Updates in 26100.4652
  • security [Wi-Fi] Fixed: The Windows Security dialog might stop responding when you sign into certain Wi-Fi networks. This issue might also occur in some other options in Settings. in 26100.4061
  • security [Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. in 26100.4061
  • security [Microsoft RPC Netlogon protocol]⁠ This update includes a security hardening change to the Microsoft RPC Netlogon protocol. This change improves security by tightening access checks for a set of remote procedure call (RPC) requests. After this update is installed, Active Directory domain… in 26100.4061
  • security Security update: includes the April 2025 Security Updates in 26100.3775
  • security [Performance] Fixed: After installing the Windows security update (KB5051987), released February 11, 2025, and later updates, on Windows Server 2025 devices, the SQL Server Launchpad service might not start if SQL Server Machine Learning Services is installed. in 26100.3775
  • security [OS Security] After installing this update or a later Windows update, a new %systemdrive%\inetpub folder will be created on your device. This folder should not be deleted regardless of whether Internet Information Services (IIS) is enabled on the target device. This behavior is part of changes… in 26100.3775
  • security [Kerberos Authentication] Change of behavior: Adds protections for a vulnerability which occurs when a certificate authority is part of the Windows root store but not the NTAuth store. This change enabled by default might cause Event ID: 45 events to be logged on the domain controller. For more… in 26100.3775
  • security [Windows Hello] After installing this update or a later Windows update, for enhanced security, Windows Hello facial recognition requires color cameras to see a visible face when signing in. For more information, see CVE-2025-26644. in 26100.3775
  • security Security update: includes the March 2025 Security Updates in 26100.3476
  • security [Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds more drivers to the list that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. in 26100.3476
  • security Security update: includes the February 2025 Security Updates in 26100.3194
  • security [USB cameras] Fixed: Your device does not recognize the camera is on. This issue occurs after you install the January 2025 security update. in 26100.3194
  • security Security update: includes the January 2025 Security Updates in 26100.2894
  • security [Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. in 26100.2894
  • security Security update: includes the December 2024 Security Updates in 26100.2605
  • security This update makes miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release. in 26100.2605
  • security Security update: includes the November 2024 Security Updates in 26100.2314
  • security Fixes CVE-2026-96951: Windows Shell Security Feature Bypass Vulnerability in 20348.5761
  • security Fixes CVE-2026-100202: Windows Message Queuing Queue Manager Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-100219: Microsoft QUIC Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-105016: Microsoft QUIC Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-70147: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-70153: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-96934: Windows DHCP Server Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-97814: Windows Text Shaping Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-100220: Windows Media Video Decoder Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-102214: Windows Hyper-V Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-102225: Windows Text Shaping Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-105733: Windows Hyper-V Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-108467: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-70250: Windows DHCP Client Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-83934: Windows GDI+ Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-96913: Windows Kernel Elevation of Privilege Vulnerability in 20348.5761
  • security Fixes CVE-2026-96914: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability in 20348.5761
  • security Fixes CVE-2026-96952: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-108457: Microsoft Windows PDF Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-108460: Windows Message Queuing Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-69802: Network Device Enrollment Service (NDES) Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-70187: Windows Remote Desktop Services Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-70229: Windows Active Directory Domain Services Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-88117: Windows DHCP Server Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-88119: Windows DHCP Server Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-88120: Windows DHCP Server Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-88171: Windows DHCP Server Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-88174: Windows Deployment Services Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-100215: Microsoft Graphics Component Remote Code Execution Vulnerability in 20348.5761
  • security Fixes CVE-2026-108131: Active Directory Federation Services (AD FS) Spoofing Vulnerability in 20348.5761
  • security Fixes CVE-2026-96222: Active Directory Federation Services (AD FS) Spoofing Vulnerability in 20348.5761
  • security Fixes CVE-2026-108399: Windows Hyper-V Elevation of Privilege Vulnerability in 20348.5761
  • security Fixes CVE-2026-102211: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability in 20348.5761
  • security Fixes CVE-2026-83917: Windows ALPC Elevation of Privilege Vulnerability in 20348.5761
  • security Security update: includes the October 2026 Security Updates in 20348.5761
  • security [Security] This update upgrades the version of cURL included with Windows to version 8.21.0. in 20348.5761
  • security [ReFS security] This update adds auditing and optional policy controls for ReFS volumes on externally attached storage devices. Auditing is enabled by default, while enforcement controls remain disabled by default to give administrators time to evaluate and prepare for future security hardening… in 20348.5761
  • security [Distributed Key Manager (DKM)] This update automatically remediates insecure DKM container ACL configurations in AD FS by default. Administrators can opt out of automatic remediation by setting RemediateDkmAcl to 0. This change helps address an elevation of privilege vulnerability that can occur… in 20348.5761
  • security [Remote Desktop Services (known issue)] Fixed: This update addresses an issue affecting Remote Desktop Services (RDS) after installing the September 2026 Windows security update (KB5122882). In affected environments, RDS might become unstable, causing RDP connection and sign-in failures or servers… in 20348.5631
  • security Fixes CVE-2026-85880: Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability in 20348.5622
  • security Fixes CVE-2026-69579: Windows Message Queuing Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69590: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69595: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69730: Windows DNS Server Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69769: Windows HTTP Print Provider Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69829: Windows Shell Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69845: Windows DHCP Server Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-70296: Windows Imaging Component Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-72979: Windows DHCP Server Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-72982: Windows Netlogon Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-72983: Internet Connection Sharing (ICS) Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-73009: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-73010: Microsoft Failover Cluster Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-77493: Windows Graphics Component Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-78445: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69499: Windows Imaging Component Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69518: Windows Remote Desktop Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69601: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69603: Windows Hyper-V Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69676: Windows Kerberos Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69712: Windows Key Distribution Center Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69860: Windows Imaging Component Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-70203: Windows Media Player Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-70586: Windows Paint Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-72950: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-72959: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-72960: Windows Media Player Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-72986: Graphic Fonts Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-73006: DirectWrite Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-73013: Windows Imaging Component Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-73018: Graphic Fonts Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-73023: Windows Imaging Component Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-77495: Windows Imaging Component Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-77504: Microsoft Office Word Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-80083: Windows Hyper-V Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-81955: Windows Graphics Component Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69846: Windows Secure Kernel Mode Elevation of Privilege Vulnerability in 20348.5622
  • security Fixes CVE-2026-69874: Windows ALPC Elevation of Privilege Vulnerability in 20348.5622
  • security Fixes CVE-2026-69906: Windows Secure Kernel Mode Elevation of Privilege Vulnerability in 20348.5622
  • security Fixes CVE-2026-72961: Windows Hyper-V Elevation of Privilege Vulnerability in 20348.5622
  • security Fixes CVE-2026-72962: Windows USB Video Driver Elevation of Privilege Vulnerability in 20348.5622
  • security Fixes CVE-2026-69530: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69813: Windows DNS Server Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69827: Windows DNS Server Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69858: Windows DNS Server Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-72981: IP Helper Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-72987: Windows DNS Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-77505: Windows DNS Server Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-78444: Microsoft Failover Cluster Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-78449: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-78450: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-72957: Windows Deployment Services Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69789: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69852: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69890: Windows Virtual Trusted Platform Module Elevation of Privilege Vulnerability in 20348.5622
  • security Fixes CVE-2026-72954: Windows Deployment Services Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-73017: Graphics Kernel Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-81355: Virtual Hard Disk (VHD) Miniport Driver Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-69501: Windows Secure Kernel Mode Elevation of Privilege Vulnerability in 20348.5622
  • security Fixes CVE-2026-70585: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability in 20348.5622
  • security Fixes CVE-2026-72980: Windows Hello Security Feature Bypass Vulnerability in 20348.5622
  • security Security update: includes the September 2026 Security Updates in 20348.5622
  • security Fixes CVE-2026-68820: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability in 20348.5499
  • security Fixes CVE-2026-62815: Microsoft QUIC Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-62878: Windows DNS Server Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-62893: Windows Deployment Services TFTP Server Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-65791: Windows iSCSI Target Service Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-62816: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-62817: Windows DNS Server Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-62818: Windows Active Directory Certificate Services (AD CS) Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-62822: Windows GDI+ Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-62823: Windows DHCP Server Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-62819: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-62820: Windows DNS Server Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-62889: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-65679: Windows iSCSI Target Service Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-65789: Windows DNS Server Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-65796: Windows iSCSI Target Service Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-66802: Windows Device Health Attestation (DHA) Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-71331: Windows Device Health Attestation (DHA) Remote Code Execution Vulnerability in 20348.5499
  • security Fixes CVE-2026-62890: Windows GDI+ Elevation of Privilege Vulnerability in 20348.5499
  • security Fixes CVE-2026-66799: Windows Key Guard Elevation of Privilege Vulnerability in 20348.5499
  • security Security update: includes the August 2026 Security Updates in 20348.5499
  • security Fixes CVE-2026-56155: Active Directory Federation Services Elevation of Privilege Vulnerability in 20348.5386
  • security Fixes CVE-2026-57092: Microsoft Windows VMSwitch Elevation of Privilege Vulnerability in 20348.5386
  • security Fixes CVE-2026-50518: Windows DHCP Server Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-56159: DHCP Server Service Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-56188: Windows Server Network driver Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-50380: Windows GDI+ Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-48564: DHCP Server Service Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-50370: DHCP Server Service Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-50382: DirectX Graphics Kernel Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-50444: Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability in 20348.5386
  • security Fixes CVE-2026-50474: Remote Desktop Client Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-54121: Active Directory Certificate Services Elevation of Privilege Vulnerability in 20348.5386
  • security Fixes CVE-2026-54982: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-54999: Windows TCP/IP Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-57087: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-57090: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-57094: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-58608: Windows Print Spooler Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-54128: Windows DHCP Client Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-54992: Microsoft Message Queuing Queue Manager Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-50680: Windows Hyper-V Elevation of Privilege Vulnerability in 20348.5386
  • security Fixes CVE-2026-49164: Windows Active Directory Domain Services Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-50694: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-54995: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-42982: Windows Secure Kernel Mode Elevation of Privilege Vulnerability in 20348.5386
  • security Fixes CVE-2026-49796: Windows GDI+ Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-50655: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-56189: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 20348.5386
  • security Fixes CVE-2026-54127: Windows Hyper-V Elevation of Privilege Vulnerability in 20348.5386
  • security Fixes CVE-2026-44815: DHCP Client Service Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-45657: Windows Kernel Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-47291: HTTP.sys Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-42985: Remote Desktop Client Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-45648: Windows Active Directory Domain Services Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-47289: Remote Desktop Client Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-44810: Microsoft Cryptographic Services Elevation of Privilege Vulnerability in 20348.5256
  • security Fixes CVE-2026-45607: Windows Hyper-V Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-45641: Windows Hyper-V Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-47652: Windows Hyper-V Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-42987: Windows Deployment Services (WDS) Remote Code Execution in 20348.5256
  • security Fixes CVE-2026-33828: Windows Device Health Attestation (DHA) Elevation of Privilege Vulnerability in 20348.5256
  • security Fixes CVE-2026-44803: Windows Graphics Component Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-44812: Windows Graphics Component Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-48574: Windows Media Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-42992: Remote Desktop Client Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-44799: Remote Desktop Client Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-44801: Remote Desktop Client Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-47654: Remote Desktop Client Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-48563: Remote Desktop Client Remote Code Execution Vulnerability in 20348.5256
  • security Fixes CVE-2026-47288: Windows Kerberos Key Distribution Center (KDC) Remote Code Execution in 20348.5256
  • security Fixes CVE-2026-41089: Windows Netlogon Remote Code Execution Vulnerability in 20348.5139
  • security Fixes CVE-2026-40402: Windows Hyper-V Elevation of Privilege Vulnerability in 20348.5139
  • security Fixes CVE-2026-40403: Windows Graphics Component Remote Code Execution Vulnerability in 20348.5139
  • security Fixes CVE-2026-35421: Windows GDI Remote Code Execution Vulnerability in 20348.5139
  • security Fixes CVE-2026-32161: Windows Native WiFi Miniport Driver Remote Code Execution Vulnerability in 20348.5139
  • security [Domain controllers (known issue)] Fixed: After installing the April 14, 2026, (KB5082142) Windows security update and restarting, domain controllers with multi-domain forests that use Privileged Access Management (PAM), might experience startup issues. In some cases, Local Security Authority… in 20348.5024
  • security Security update: includes the April 2026 Security Updates in 20348.5020
  • security [Kerberos protocol] This update changes the default DefaultDomainSupportedEncTypes value for Kerberos Key Distribution Center (KDC) operations to leverage AES-SHA1 for accounts that do not have an explicit msds-SupportedEncryptionTypes Active Directory attribute defined. For more information see,… in 20348.5020
  • security [Remote Desktop] This update improves protection against phishing attacks that use Remote Desktop (.rdp) files. When you open an .rdp file, Remote Desktop shows all requested connection settings before it connects, with each setting turned off by default. A one-time security warning also appears… in 20348.5020
  • security [Vulnerable driver blocklist] This update introduces a security hardening change that adds known vulnerable kernel drivers to the Microsoft vulnerable driver blocklist. Backup applications that rely on blocked drivers might experience failures when attempting to mount or manage disk images. These… in 20348.5020
  • security [Windows Deployment Services (WDS)] This update disables the “Hands-Free Deployment” feature in WDS by default and is no longer a supported feature. For more information about this change, see Windows Deployment Services (WDS) Hands-Free Deployment Hardening Guidance related to CVE-2026-0386. in 20348.5020
  • security Security update: includes the March 2026 Security Updates in 20348.4893
  • security [Graphics] Fixed: This update addresses an issue where certain GPU configurations might recently have experienced a system error related to dxgmms2.sys, resulting in the KERNEL_SECURITY_CHECK_FAILURE error. in 20348.4773
  • security [OS Security (known issue)] Fixed: After installing the Windows security update released on or after January 13, 2026, some PCs which run Virtual Secure Mode (VSM) are unable to shut down or enter hibernation. Instead, the device restarts. in 20348.4773
  • security [Remote Desktop] Fixed: After installing the January 2026 Windows security update (KB5073457), some users experienced sign-in failures during Remote Desktop connections. This issue affected authentication steps for different Remote Desktop applications on Windows such as the Windows App. in 20348.4650
  • security [Credentials autofill] This update introduces a security hardening behavior restricting certain applications to autofill credentials during remote support sessions or automated authentication workflows. With this change, credential dialogs do not respond to virtual keyboard input from remote… in 20348.4648
  • security [WinSqlite3.dll] Fixed: The Windows core component, WinSqlite3.dll, has been updated. Previously, some security software might have detected this component as vulnerable. Note WinSqlite3.dll is a separate component from sqlite3.dll, which is found in application-specific directories and is not a… in 20348.4648
  • security [PowerShell 5.1] Invoke-WebRequest now includes a confirmation prompt with a security warning of script execution risk. You can choose to continue or cancel the request. For additional details, see CVE-2025-54100 and KB5074596: PowerShell 5.1: Preventing script execution from web content. in 20348.4529
  • security [App compatibility (known issue)] Fixed: This update addresses an issue that created unexpected User Account Control (UAC) prompts for some apps, including Autodesk AutoCAD. For more information, see Unexpected UAC prompts when running MSI repair operations after installing the August 2025 Windows… in 20348.4405
  • security [Security] Fixed: This update addresses an issue that affects Windows Server domain controllers using Microsoft Defender for Endpoint. After domain controller promotion, changes to registry permissions disrupted cloud-based communication. in 20348.4405
  • security [Windows Server Update Services (WSUS)] Fixed: This update addresses a remote code execution (RCE) vulnerability that was identified in WSUS reporting web services. For more information about the security fix, see CVE-2025-59287. in 20348.4297
  • security [Stability issue] Fixed: This update addresses an issue observed in rare cases after installing the May 2025 security update and subsequent updates causing devices to experience stability issues. Some devices became unresponsive and stopped responding in specific scenarios. in 20348.4294
  • security [Cryptography] This update enforces a security hardening improvement by requiring use of Key Storage Provider (KSP) instead of Cryptographic Service Provider {CSP) for RSA-based smart card certificates. If you experience problems with smart card authentication as a result of this design change,… in 20348.4294
  • security [File Explorer] After installing this update, File Explorer automatically disables the preview feature for files downloaded from the internet. This change is designed to enhance security by preventing a vulnerability when users preview potentially unsafe files. For details, including steps to… in 20348.4294
  • security [App compatibility (known issue)] Fixed: Addresses an issue that caused non-admin users to receive unexpected User Account Control (UAC) prompts when MSI installers perform certain custom actions. These actions might include configuration or repair operations in the foreground or background,… in 20348.4171
  • security [File server]⁠ This update enabled auditing SMB client compatibility for SMB Server signing as well as SMB Server EPA. This allows customers to assess their environment and identify any potential device or software incompatibility issues before deploying the hardening measures that are already… in 20348.4171
  • security Security update: includes the July 2025 Security Updates in 20348.3932
  • security [Microsoft RPC Netlogon protocol] This update includes a security hardening change to the Microsoft RPC Netlogon protocol. This change improves security by tightening access checks for a set of remote procedure call (RPC) requests. After this update is installed, Active Directory domain… in 20348.3932
  • security [Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. in 20348.3692
  • security It addresses a known issue where Audit Logon/Logoff events in the local policy of the Active Directory Group Policy might not show as enabled on the device even if they are enabled and working as expected. This can be observed in the Local Group Policy Editor or Local Security Policy, where local… in 20348.3561
  • security Security update: includes the April 2025 Security Updates in 20348.3453
  • security [OS Security] After installing this update or a later Windows update, a new %systemdrive%\inetpub folder will be created on your device. This folder should not be deleted regardless of whether Internet Information Services (IIS) is enabled on the target device. This behavior is part of changes… in 20348.3453
  • security [Kerberos Authentication] Change of behavior: Adds protections for a vulnerability which occurs when a certificate authority is part of the Windows root store but not the NTAuth store. This change enabled by default might cause Event ID: 45 events to be logged on the domain controller. For more… in 20348.3453
  • security Security update: includes the February 2025 Security Updates in 20348.3207
  • security [Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. in 20348.3207
  • security [USB cameras] Fixed: Your device does not recognize the camera is on. This issue occurs after you install the January 2025 security update. in 20348.3207
  • security Security update: includes the January 2025 Security Updates in 20348.3091
  • security [Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. in 20348.3091
  • security Security update: includes the December 2024 Security Updates in 20348.2966
  • security [Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. in 20348.2849
  • security Security update: includes the October 2024 Security Updates in 20348.2762
  • security Security update: includes the September 2024 Security Updates in 20348.2700
  • security [Dual boot of Windows and Linux (known issue)] Linux might fail to start up when you turn on dual-boot setup for Windows and Linux on your device. The error message is, “Verifying shim SBAT data failed: Security Policy Violation. Something has gone seriously wrong: SBAT self-check failed: Security… in 20348.2700
  • security Security update: includes the August 2024 Security Updates in 20348.2655
  • security [Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. in 20348.2655
  • security [BitLocker (known issue)] A BitLocker recovery screen shows when you start up your device. This occurs after you install the July 9, 2024, update. This issue is more likely to occur if device encryption is on. Go to Settings > Privacy & Security > Device encryption. To unlock your drive, Windows… in 20348.2655
  • security [Lock screen] This update addresses CVE-2024-38143. Because of this, the “Use my Windows user account” checkbox is not available on the lock screen to connect to Wi-Fi. in 20348.2655
  • security [Secure Boot Advanced Targeting (SBAT) and Linux Extensible Firmware Interface (EFI)] This update applies SBAT to systems that run Windows. This stops vulnerable Linux EFI (Shim bootloaders) from running. This SBAT update will not apply to systems that dual-boot Windows and Linux. After the SBAT… in 20348.2655
  • security [Domain Name System (DNS)] This update hardens DNS server security to address CVE-2024-37968. If the configurations of your domains are not up to date, you might get the SERVFAIL error or time out. in 20348.2655
  • security Security update: includes the July 2024 Security Updates in 20348.2582
  • security [BitLocker] This update adds PCR 4 to PCR 7 and 11 for the default Secure Boot validation profile. See CVE-2024-38058 for more information. in 20348.2582
  • security Security update: includes the June 2024 Security Updates in 20348.2527
  • security This update addresses an issue that affects lsass.exe. It stops responding. This occurs after you install the April 2024 security updates on Windows servers. in 20348.2527
  • security This update addresses an issue that affects lsass.exe. It leaks memory. This occurs during a Local Security Authority (Domain Policy) Remote Protocol (LSARPC) call. in 20348.2527
  • security Security update: includes the May 2024 Security Updates in 20348.2461
  • security This update includes quarterly changes to the Windows Kernel Vulnerable Driver Blocklist file, DriverSiPolicy.p7b. It adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. in 20348.2461
  • security This update addresses an issue that affects Group Policy Folder Redirection in a multi-forest deployment. The issue stops you from choosing a group account from the target domain. Because of this, you cannot apply advanced folder redirection settings to that domain. This issue occurs when the… in 20348.2461
  • security Security update: includes the April 2024 Security Updates in 20348.2402
  • security This update addresses a known issue that affects the Local Security Authority Subsystem Service (LSASS). It might leak memory on domain controllers (DCs). This issue occurs after you install KB5035857 (March 12, 2024). The leak occurs when on-premises and cloud-based Active Directory DCs process… in 20348.2342
  • security Security update: includes the March 2024 Security Updates in 20348.2340
  • security The update affects Active Directory domains that host mobile device management (MDM) providers. They can transition from “Compatibility mode” to the strong certificate mapping “Enforcement mode.” To do this, they can allow an Active Directory Key Distribution Center (KDC) to read user security… in 20348.2340
  • security Security update: includes the February 2024 Security Updates in 20348.2322
  • security This update addresses an issue that affects the Local Security Authority Subsystem Service (LSASS). It might stop working. This occurs when you access the Active Directory database. in 20348.2322
  • security This update includes quarterly changes to the Windows Kernel Vulnerable Driver Blocklist file, DriverSiPolicy.p7b. It adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. in 20348.2322
  • security Security update: includes the January 2024 Security Updates in 20348.2227
  • security Security update: includes the December 2023 Security Updates in 20348.2159
  • security Security update: includes the November 2023 Security Updates in 20348.2113
  • security This update includes quarterly changes to the Windows Kernel Vulnerable Driver Blocklist file, DriverSiPolicy.p7b. It adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. in 20348.2113
  • security Security update: includes the October 2023 Security Updates in 20348.2031
  • security This update addresses an issue that affects Kerberos delegation. It might fail in the wrong way. The error code is 0xC000006E (STATUS_ACCOUNT_RESTRICTION). This issue might occur when you mark the intermediate service account as “This account is sensitive and cannot be delegated” in Active… in 20348.2031
  • security To protect against CVE-2023-44487, you should install the latest Windows update. Based on your use case, you can also set the limit of the RST_STREAMS per minute using the new registry keys in this update. You can create the DWORD registry values in the table below under the following registry… in 20348.2031
  • security Security update: includes the September 2023 Security Updates in 20348.1970
  • security This update addresses an issue that affects the Local Security Authority Subsystem Service (LSASS). It stops responding. This occurs when you use Azure Virtual Desktop (AVD). in 20348.1970
  • security This update addresses an issue that affects the Local Security Authority Subsystem Service (LSASS) process. It might stop responding. Because of this, the machine restarts. The error is 0xc0000005 (STATUS_ACCESS_VIOLATION). in 20348.1970
  • security Security update: includes the August 2023 Security Updates in 20348.1906
  • security This update addresses a deadlock in Internet Protocol Security (IPsec). When you configure servers with IPsec rules, they stop responding. This issue affects virtual and physical servers. in 20348.1906
  • security This update affects the Windows Kernel Vulnerable Driver Blocklist, DriverSiPolicy.p7b. It adds drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. in 20348.1906
  • security Security update: includes the July 2023 Security Updates in 20348.1850
  • security Security update: includes the June 2023 Security Updates in 20348.1787
  • security This update addresses an issue that might affect the Local Security Authority Subsystem Service (LSASS). It might close sporadically. The system logs the exception 0xc0000710 in the Application Error event 1000. Because of this, the domain controller restarts unexpectedly. This issue affects… in 20348.1787
  • security This update addresses an issue that affects the Windows Kernel. This issue is related to CVE-2023-32019. To learn more, see KB5028407. in 20348.1787
  • security Security update: includes the May 2023 Security Updates in 20348.1726
  • security This update addresses a race condition in Windows Local Administrator Password Solution (LAPS). The Local Security Authority Subsystem Service (LSASS) might stop responding. This occurs when the system processes multiple local account operations at the same time. The access violation error code is… in 20348.1726
  • security Security update: includes the April 2023 Security Updates in 20348.1668
  • security Security update: includes the March 2023 Security Updates in 20348.1607
  • security This update addresses an issue that occurs when an access control policy denies you access to a resource. When you sign out, the system does not delete the POST Security Assertion Markup Language (SAML) Request cookie. This stops you from choosing other resources the next time you sign in. in 20348.1607
  • security This update addresses an issue that affects the Local Security Authority Subsystem Service (LSASS). LSASS might stop responding. This occurs after you run Sysprep on a domain-joined machine. in 20348.1607
  • security This update addresses an issue that affects a computer account and Active Directory. When you reuse an existing computer account to join an Active Directory domain, joining fails. This occurs on devices that have installed Windows updates dated October 11, 2022 or later. The error message is,… in 20348.1607
  • security Security update: includes the February 2023 Security Updates in 20348.1547
  • security This update addresses an issue that affects all commands that change security tags. On Windows 11, version 22H2 computers, the change will fail if you update the Network Controller but not the Remote Server Administration Tools (RSAT) clients. in 20348.1547
  • security Security update: includes the January 2023 Security Updates in 20348.1487
  • security Security update: includes the December 2022 Security Updates in 20348.1366
  • security It addresses a known issue that might affect Windows Servers that have the Domain Controller (DC) role. They might have Kerberos authentication issues if both of the following are true: You might receive Microsoft-Windows-Kerberos-Key-Distribution-Center Event ID 14 errors. These appear in the… in 20348.1251
  • security Security update: includes the November 2022 Security Updates in 20348.1249
  • security It addresses security vulnerabilities in the Kerberos and Netlogon protocols as outlined in CVE-2022-38023, CVE-2022-37966, and CVE-2022-37967. For deployment guidance, see the following: in 20348.1249
  • security KB5020805: How to manage the Kerberos Protocol changes related to CVE-2022-37967 in 20348.1249
  • security KB5021130: How to manage Netlogon Protocol changes related to CVE-2022-38023 in 20348.1249
  • security KB5021131: How to manage the Kerberos Protocol changes related to CVE-2022-37966 in 20348.1249
  • security It addresses an issue that might affect some types of Secure Sockets Layer (SSL) and Transport Layer Security (TLS) connections. These connections might have handshake failures. For developers, the affected connections are likely to receive one or more records followed by a partial record with a… in 20348.1131
  • security Security update: includes the October 2022 Security Updates in 20348.1129
  • security Security update: includes the September 2022 Security Updates in 20348.1006
  • security This update contains miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release. in 20348.1006
  • security Security update: includes the August 2022 Security Updates in 20348.887
  • security Addresses an issue that might cause the Local Security Authority Server Service (LSASS) to leak tokens. This issue affects devices that have installed Windows updates dated June 14, 2022 or later. This issue occurs when the device performs a specific form of service for user (S4U) in a non-Trusted… in 20348.887
  • security Security update: includes the July 2022 Security Updates in 20348.825
  • security Security update: includes the June 2022 Security Updates in 20348.768
  • security Addresses an elevation of privilege (EOP) vulnerability under CVE-2022-30154 for the Microsoft File Server Shadow Copy Agent Service. To become protected and functional, you must install the June 14, 2022 or later Windows update on both the application server and the file server. The application… in 20348.768
  • security This update contains miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release. in 20348.707
  • security Addresses an issue that causes a Denial of Service vulnerability on Cluster Shared Volumes (CSV). For more information, see CVE-2020-26784. in 20348.643
  • security Security update: includes the March 2022 Security Updates in 20348.587
  • security This update contains miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release. in 20348.587
  • security Addresses a known issue that might cause IP Security (IPSEC) connections that contain a Vendor ID to fail. VPN connections using Layer 2 Tunneling Protocol (L2TP) or IP security Internet Key Exchange (IPSEC IKE) might also be affected. in 20348.473
  • security Security update: includes the January 2022 Security Updates in 20348.469
  • security Security update: includes the December 2021 Security Updates in 20348.405
  • security Fixes CVE-2026-96951: Windows Shell Security Feature Bypass Vulnerability in 17763.9376
  • security Fixes CVE-2026-100202: Windows Message Queuing Queue Manager Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-70147: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-70153: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-96934: Windows DHCP Server Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-97814: Windows Text Shaping Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-100220: Windows Media Video Decoder Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-102214: Windows Hyper-V Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-102225: Windows Text Shaping Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-108467: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-108471: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability in 17763.9376
  • security Fixes CVE-2026-70250: Windows DHCP Client Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-83934: Windows GDI+ Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-96913: Windows Kernel Elevation of Privilege Vulnerability in 17763.9376
  • security Fixes CVE-2026-96914: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability in 17763.9376
  • security Fixes CVE-2026-96952: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-108460: Windows Message Queuing Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-69802: Network Device Enrollment Service (NDES) Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-70187: Windows Remote Desktop Services Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-70229: Windows Active Directory Domain Services Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-88117: Windows DHCP Server Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-88119: Windows DHCP Server Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-88120: Windows DHCP Server Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-88171: Windows DHCP Server Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-88174: Windows Deployment Services Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-100215: Microsoft Graphics Component Remote Code Execution Vulnerability in 17763.9376
  • security Fixes CVE-2026-108131: Active Directory Federation Services (AD FS) Spoofing Vulnerability in 17763.9376
  • security Fixes CVE-2026-96222: Active Directory Federation Services (AD FS) Spoofing Vulnerability in 17763.9376
  • security Fixes CVE-2026-108399: Windows Hyper-V Elevation of Privilege Vulnerability in 17763.9376
  • security Fixes CVE-2026-102211: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability in 17763.9376
  • security Fixes CVE-2026-83917: Windows ALPC Elevation of Privilege Vulnerability in 17763.9376
  • security Security update: includes the October 2026 Security Updates in 17763.9376
  • security [ReFS security] This update adds auditing and optional policy controls for ReFS volumes on externally attached storage devices. Auditing is enabled by default, while enforcement controls remain disabled by default to give administrators time to evaluate and prepare for future security hardening… in 17763.9376
  • security [Distributed Key Manager (DKM)] This update automatically remediates insecure DKM container ACL configurations in AD FS by default. Administrators can opt out of automatic remediation by setting RemediateDkmAcl to 0. This change helps address an elevation of privilege vulnerability that can occur… in 17763.9376
  • security Security update: includes the September 2026 Security Updates in 17763.9247
  • security [Remote Desktop Services (known issue)] Fixed: This update addresses an issue affecting Remote Desktop Services (RDS) after installing the September 2026 Windows security update (KB5122876). In affected environments, RDS might become unstable, causing RDP connection and sign-in failures or servers… in 17763.9247
  • security Fixes CVE-2026-85880: Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability in 17763.9245
  • security Fixes CVE-2026-69579: Windows Message Queuing Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69590: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69595: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69730: Windows DNS Server Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69769: Windows HTTP Print Provider Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69829: Windows Shell Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69845: Windows DHCP Server Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-70296: Windows Imaging Component Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-72979: Windows DHCP Server Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-72982: Windows Netlogon Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-72983: Internet Connection Sharing (ICS) Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-73009: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-73010: Microsoft Failover Cluster Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-77493: Windows Graphics Component Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-78445: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69499: Windows Imaging Component Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69518: Windows Remote Desktop Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69601: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69603: Windows Hyper-V Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69676: Windows Kerberos Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69712: Windows Key Distribution Center Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69860: Windows Imaging Component Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-70203: Windows Media Player Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-70586: Windows Paint Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-72950: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-72959: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-72960: Windows Media Player Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-72986: Graphic Fonts Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-73006: DirectWrite Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-73013: Windows Imaging Component Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-73018: Graphic Fonts Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-73023: Windows Imaging Component Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-77495: Windows Imaging Component Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-77504: Microsoft Office Word Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-81955: Windows Graphics Component Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69846: Windows Secure Kernel Mode Elevation of Privilege Vulnerability in 17763.9245
  • security Fixes CVE-2026-69874: Windows ALPC Elevation of Privilege Vulnerability in 17763.9245
  • security Fixes CVE-2026-69906: Windows Secure Kernel Mode Elevation of Privilege Vulnerability in 17763.9245
  • security Fixes CVE-2026-72961: Windows Hyper-V Elevation of Privilege Vulnerability in 17763.9245
  • security Fixes CVE-2026-72962: Windows USB Video Driver Elevation of Privilege Vulnerability in 17763.9245
  • security Fixes CVE-2026-81354: Windows Hello Elevation of Privilege Vulnerability in 17763.9245
  • security Fixes CVE-2026-69530: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69813: Windows DNS Server Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69827: Windows DNS Server Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-72981: IP Helper Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-72987: Windows DNS Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-77505: Windows DNS Server Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-78444: Microsoft Failover Cluster Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-78449: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-78450: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-72957: Windows Deployment Services Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69789: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69852: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-69890: Windows Virtual Trusted Platform Module Elevation of Privilege Vulnerability in 17763.9245
  • security Fixes CVE-2026-72954: Windows Deployment Services Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-73017: Graphics Kernel Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-81355: Virtual Hard Disk (VHD) Miniport Driver Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-70585: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability in 17763.9245
  • security Fixes CVE-2026-72980: Windows Hello Security Feature Bypass Vulnerability in 17763.9245
  • security Security update: includes the September 2026 Security Updates in 17763.9245
  • security Fixes CVE-2026-68820: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability in 17763.9121
  • security Fixes CVE-2026-62878: Windows DNS Server Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-62893: Windows Deployment Services TFTP Server Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-65791: Windows iSCSI Target Service Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-62816: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-62817: Windows DNS Server Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-62818: Windows Active Directory Certificate Services (AD CS) Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-62822: Windows GDI+ Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-62823: Windows DHCP Server Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-62819: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-62820: Windows DNS Server Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-62889: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-65679: Windows iSCSI Target Service Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-65789: Windows DNS Server Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-65796: Windows iSCSI Target Service Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-66802: Windows Device Health Attestation (DHA) Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-71331: Windows Device Health Attestation (DHA) Remote Code Execution Vulnerability in 17763.9121
  • security Fixes CVE-2026-62890: Windows GDI+ Elevation of Privilege Vulnerability in 17763.9121
  • security Fixes CVE-2026-66799: Windows Key Guard Elevation of Privilege Vulnerability in 17763.9121
  • security Security update: includes the August 2026 Security Updates in 17763.9121
  • security Fixes CVE-2026-56155: Active Directory Federation Services Elevation of Privilege Vulnerability in 17763.9020
  • security Fixes CVE-2026-57092: Microsoft Windows VMSwitch Elevation of Privilege Vulnerability in 17763.9020
  • security Fixes CVE-2026-50518: Windows DHCP Server Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-56159: DHCP Server Service Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-56188: Windows Server Network driver Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-50380: Windows GDI+ Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-48564: DHCP Server Service Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-50370: DHCP Server Service Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-50382: DirectX Graphics Kernel Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-50444: Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability in 17763.9020
  • security Fixes CVE-2026-50474: Remote Desktop Client Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-54121: Active Directory Certificate Services Elevation of Privilege Vulnerability in 17763.9020
  • security Fixes CVE-2026-54982: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-54999: Windows TCP/IP Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-57087: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-57090: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-57094: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-58608: Windows Print Spooler Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-54128: Windows DHCP Client Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-54992: Microsoft Message Queuing Queue Manager Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-50680: Windows Hyper-V Elevation of Privilege Vulnerability in 17763.9020
  • security Fixes CVE-2026-49164: Windows Active Directory Domain Services Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-50694: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-54995: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-42982: Windows Secure Kernel Mode Elevation of Privilege Vulnerability in 17763.9020
  • security Fixes CVE-2026-49796: Windows GDI+ Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-50655: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-56189: Microsoft Windows Media Foundation Remote Code Execution Vulnerability in 17763.9020
  • security Fixes CVE-2026-44815: DHCP Client Service Remote Code Execution Vulnerability in 17763.8880
  • security Fixes CVE-2026-47291: HTTP.sys Remote Code Execution Vulnerability in 17763.8880
  • security Fixes CVE-2026-42985: Remote Desktop Client Remote Code Execution Vulnerability in 17763.8880
  • security Fixes CVE-2026-47289: Remote Desktop Client Remote Code Execution Vulnerability in 17763.8880
  • security Fixes CVE-2026-45607: Windows Hyper-V Remote Code Execution Vulnerability in 17763.8880
  • security Fixes CVE-2026-42987: Windows Deployment Services (WDS) Remote Code Execution in 17763.8880
  • security Fixes CVE-2026-33828: Windows Device Health Attestation (DHA) Elevation of Privilege Vulnerability in 17763.8880
  • security Fixes CVE-2026-44803: Windows Graphics Component Remote Code Execution Vulnerability in 17763.8880
  • security Fixes CVE-2026-44812: Windows Graphics Component Remote Code Execution Vulnerability in 17763.8880
  • security Fixes CVE-2026-48574: Windows Media Remote Code Execution Vulnerability in 17763.8880
  • security Fixes CVE-2026-42992: Remote Desktop Client Remote Code Execution Vulnerability in 17763.8880
  • security Fixes CVE-2026-44799: Remote Desktop Client Remote Code Execution Vulnerability in 17763.8880
  • security Fixes CVE-2026-44801: Remote Desktop Client Remote Code Execution Vulnerability in 17763.8880
  • security Fixes CVE-2026-47654: Remote Desktop Client Remote Code Execution Vulnerability in 17763.8880
  • security Fixes CVE-2026-48563: Remote Desktop Client Remote Code Execution Vulnerability in 17763.8880
  • security Fixes CVE-2026-47288: Windows Kerberos Key Distribution Center (KDC) Remote Code Execution in 17763.8880
  • security Fixes CVE-2026-41089: Windows Netlogon Remote Code Execution Vulnerability in 17763.8755
  • security Fixes CVE-2026-40403: Windows Graphics Component Remote Code Execution Vulnerability in 17763.8755
  • security Fixes CVE-2026-35421: Windows GDI Remote Code Execution Vulnerability in 17763.8755
  • security Fixes CVE-2026-32161: Windows Native WiFi Miniport Driver Remote Code Execution Vulnerability in 17763.8755
  • security Security update: includes the April 2026 Security Updates in 17763.8647
  • security [Domain controllers (known issue)] Fixed: After installing the April 14, 2026, (KB5082123) Windows security update and restarting, domain controllers with multi-domain forests that use Privileged Access Management (PAM), might experience startup issues. In some cases, Local Security Authority… in 17763.8647
  • security Security update: includes the April 2026 Security Updates in 17763.8644
  • security [Remote Desktop] This update improves protection against phishing attacks that use Remote Desktop (.rdp) files. When you open an .rdp file, Remote Desktop shows all requested connection settings before it connects, with each setting turned off by default. A one-time security warning also appears… in 17763.8644
  • security [Vulnerable driver blocklist] This update introduces a security hardening change that adds known vulnerable kernel drivers to the Microsoft vulnerable driver blocklist. Backup applications that rely on blocked drivers might experience failures when attempting to mount or manage disk images. These… in 17763.8644
  • security [Windows Deployment Services (WDS)] This update disables the “Hands-Free Deployment” feature in WDS by default and is no longer a supported feature. For more information about this change, see Windows Deployment Services (WDS) Hands-Free Deployment Hardening Guidance related to CVE-2026-0386. in 17763.8644
  • security [Kerberos protocol] This update changes the default DefaultDomainSupportedEncTypes value for Kerberos Key Distribution Center (KDC) operations to leverage AES-SHA1 for accounts that do not have an explicit msds-SupportedEncryptionTypes Active Directory attribute defined. For more information see,… in 17763.8644
  • security This update enables dynamic status reporting for Secure Boot states in the Windows Security App (Settings > Update & Security > Windows Security). Learn more about the status alerts via badges and notifications. Note that these enhancements are disabled by default on commercial devices and servers. in 17763.8644
  • security Security update: includes the March 2026 Security Updates in 17763.8511
  • security Security update: includes the February 2026 Security Updates in 17763.8389
  • security [OS Security (known issue)] Fixed: After installing the Windows security update released on or after January 13, 2026, some Secure Launch-capable PCs with Virtual Secure Mode (VSM) enabled are unable to shut down or enter hibernation. Instead, the device restarts. in 17763.8389
  • security Security update: includes the January 2026 Security Updates in 17763.8281
  • security Security update: includes the January 2026 Security Updates in 17763.8280
  • security Security update: includes the January 2026 Security Updates in 17763.8276
  • security [Credentials autofill] This update introduces a security hardening behavior restricting certain applications to autofill credentials during remote support sessions or automated authentication workflows. With this change, credential dialogs do not respond to virtual keyboard input from remote… in 17763.8276
  • security [WinSqlite3.dll] Fixed: The Windows core component, WinSqlite3.dll, has been updated. Previously, some security software might have detected this component as vulnerable. Note WinSqlite3.dll is a separate component from sqlite3.dll, which is found in application-specific directories and is not a… in 17763.8276
  • security Security update: includes the December 2025 Security Updates in 17763.8148
  • security Security update: includes the December 2025 Security Updates in 17763.8146
  • security [PowerShell 5.1] The Invoke-WebRequest command now includes a confirmation prompt with a security warning of a script execution risk. You can choose to continue or cancel the request. For additional details, see CVE-2025-54100 and KB5074596: PowerShell 5.1: Preventing script execution from web… in 17763.8146
  • security Security update: includes the November 2025 Security Updates in 17763.8027
  • security [App compatibility (known issue)] Fixed: This update addresses an issue that created unexpected User Account Control (UAC) prompts for some apps, including Autodesk AutoCAD. For more information, see Unexpected UAC prompts when running MSI repair operations after installing the August 2025 Windows… in 17763.8027
  • security [Internal Windows OS] This update contains miscellaneous security improvements to internal Windows OS functionality. No specific issues are documented for this release. in 17763.8027
  • security Security update: includes the October 2025 Security Updates in 17763.7922
  • security [Windows Server Update Services (WSUS)] Fixed: This update addresses a remote code execution (RCE) vulnerability that was identified in WSUS reporting web services. For more information about the security fix, see CVE-2025-59287. in 17763.7922
  • security Security update: includes the October 2025 Security Updates in 17763.7919
  • security This update enforces a security hardening improvement by requiring use of Key Storage Provider (KSP) instead of Cryptographic Service Provider {CSP) for RSA-based smart card certificates. If you experience problems with smart card authentication as a result of this design change, see the Windows… in 17763.7919
  • security After installing this update, File Explorer automatically disables the preview feature for files downloaded from the internet. This change is designed to enhance security by preventing a vulnerability when users preview potentially unsafe files. For details, including steps to unblock files, see… in 17763.7919
  • security Fixed: This update addresses an issue observed in rare cases after installing the May 2025 security update and subsequent updates causing devices to experience stability issues. Some devices became unresponsive and stopped responding in specific scenarios. in 17763.7919
  • security Security update: includes the September 2025 Security Updates in 17763.7792
  • security [App compatibility (known issue)] Fixed: Addresses an issue that caused non-admin users to receive unexpected User Account Control (UAC) prompts when MSI installers perform certain custom actions. These actions might include configuration or repair operations in the foreground or background,… in 17763.7792
  • security [File Server] New! This update enables auditing SMB client compatibility for SMB Server signing as well as SMB Server EPA. This allows customers to assess their environment and identify any potential device or software incompatibility issues before deploying the hardening measures that are already… in 17763.7792
  • security Security update: includes the August 2025 Security Updates in 17763.7683
  • security [Fix for reset and recovery issue] This update addresses an issue introduced by the August 2025 security update (KB5063877) in which attempts to reset and recover the device fails. This issue happens when users perform one or more of the following processes: For more information on this issue, see… in 17763.7683
  • security Security update: includes the August 2025 Security Updates in 17763.7678
  • security Security update: includes the July 2025 Security Updates in 17763.7558
  • security [Network Security and Containers] Fixed: An issue in the CharNextW function which caused incorrect character rendering for GB18030-2022 compliance. The function has been deprecated and replaced with a modern ICU-based solution to ensure proper handling of GB18030-2022 requirements. in 17763.7558
  • security [Microsoft RPC Netlogon protocol] This update includes a security hardening change to the Microsoft RPC Netlogon protocol. This change improves security by tightening access checks for a set of remote procedure call (RPC) requests. After this update is installed, Active Directory domain… in 17763.7558
  • security Security update: includes the June 2025 Security Updates in 17763.7434
  • security Security update: includes the May 2025 Security Updates in 17763.7322
  • security Security update: includes the May 2025 Security Updates in 17763.7314
  • security [OS Security] Updates to the Windows Kernel Vulnerable Driver Blocklist (DriverSiPolicy.p7b). Additions have been made to blocklist drivers with security vulnerabilities that have been used in Bring Your Own Vulnerable Driver (BYOVD) attacks. in 17763.7314
  • security It addresses a known issue where Audit Logon/Logoff events in the local policy of the Active Directory Group Policy might not show as enabled on the device even if they are enabled and working as expected. This can be observed in the Local Group Policy Editor or Local Security Policy, where local… in 17763.7240
  • security Security update: includes the April 2025 Security Updates in 17763.7136
  • security This update addresses security issues for your Windows operating system. in 17763.7136
  • security [OS Security] After installing this update or a later Windows update, a new %systemdrive%\inetpub folder will be created on your device. This folder should not be deleted regardless of whether Internet Information Services (IIS) is enabled on the target device. This behavior is part of changes… in 17763.7136
  • security [Kerberos Authentication] Change of behavior: Adds protections for a vulnerability which occurs when a certificate authority is part of the Windows root store but not the NTAuth store. This change enabled by default might cause Event ID: 45 events to be logged on the domain controller. For more… in 17763.7136
  • security [Windows Hello] After installing this update or a later Windows update, for enhanced security, Windows Hello facial recognition requires color cameras to see a visible face when signing in. For more information, see CVE-2025-26644. in 17763.7136
  • security Security update: includes the March 2025 Security Updates in 17763.7009
  • security This update addresses security issues for your Windows operating system. in 17763.7009
  • security Security update: includes the February 2025 Security Updates in 17763.6893
  • security [USB cameras] Fixed: Your device does not recognize the camera is on. This issue occurs after you install the January 2025 security update. in 17763.6893
  • security Security update: includes the January 2025 Security Updates in 17763.6775
  • security This update addresses security issues for your Windows operating system. in 17763.6775
  • security Security update: includes the December 2024 Security Updates in 17763.6659
  • security This update addresses security issues for your Windows operating system. in 17763.6659
  • security Security update: includes the November 2024 Security Updates in 17763.6532
  • security This update addresses security issues for your Windows operating system. in 17763.6532
  • security Security update: includes the October 2024 Security Updates in 17763.6414
  • security This update addresses security issues for your Windows operating system. in 17763.6414
  • security Security update: includes the September 2024 Security Updates in 17763.6293
  • security This update addresses security issues for your Windows operating system. in 17763.6293
  • security Security update: includes the August 2024 Security Updates in 17763.6189
  • security This update addresses security issues for your Windows operating system. in 17763.6189
  • security Security update: includes the July 2024 Security Updates in 17763.6054
  • security Security update: includes the June 2024 Security Updates in 17763.5936
  • security This update addresses security issues for your Windows operating system. in 17763.5936
  • security Security update: includes the May 2024 Security Updates in 17763.5820
  • security Security update: includes the April 2024 Security Updates in 17763.5696
  • security This update addresses a known issue that affects the Local Security Authority Subsystem Service (LSASS). in 17763.5579
  • security Security update: includes the March 2024 Security Updates in 17763.5576
  • security Security update: includes the February 2024 Security Updates in 17763.5458
  • security This update addresses security issues for your Windows operating system. in 17763.5458
  • security Security update: includes the January 2024 Security Updates in 17763.5329
  • security This update addresses security issues for your Windows operating system. in 17763.5329
  • security Security update: includes the December 2023 Security Updates in 17763.5206
  • security This update addresses security issues for your Windows operating system. in 17763.5206
  • security Security update: includes the November 2023 Security Updates in 17763.5122
  • security This update addresses security issues for your Windows operating system. in 17763.5122
  • security Security update: includes the October 2023 Security Updates in 17763.4974
  • security This update addresses security issues for your Windows operating system. in 17763.4974
  • security Security update: includes the September 2023 Security Updates in 17763.4851
  • security This update addresses security issues for your Windows operating system. in 17763.4851
  • security Security update: includes the August 2023 Security Updates in 17763.4737
  • security This update addresses security issues for your Windows operating system. in 17763.4737
  • security Security update: includes the July 2023 Security Updates in 17763.4645
  • security Security update: includes the June 2023 Security Updates in 17763.4499
  • security This update addresses security issues for your Windows operating system. in 17763.4499
  • security Security update: includes the May 2023 Security Updates in 17763.4377
  • security This update addresses security issues for your Windows operating system. in 17763.4377
  • security Security update: includes the April 2023 Security Updates in 17763.4252
  • security This update addresses security issues for your Windows operating system. in 17763.4252
  • security Security update: includes the March 2023 Security Updates in 17763.4131
  • security This update addresses security issues for your Windows operating system. in 17763.4131
  • security Security update: includes the February 2023 Security Updates in 17763.4010
  • security This update addresses security issues for your Windows operating system. in 17763.4010
  • security Security update: includes the January 2023 Security Updates in 17763.3887
  • security This update addresses security issues for your Windows operating system. in 17763.3887
  • security Security update: includes the December 2022 Security Updates in 17763.3770
  • security This update addresses security issues for your Windows operating system. in 17763.3770
  • security Security update: includes the November 2022 Security Updates in 17763.3650
  • security It addresses security issues for your Windows operating system. in 17763.3650
  • security It addresses an issue that might affect some types of Secure Sockets Layer (SSL) and Transport Layer Security (TLS) connections. These connections might have handshake failures. For developers, the affected connections are likely to receive one or more records followed by a partial record with a… in 17763.3534
  • security Security update: includes the October 2022 Security Updates in 17763.3532
  • security It addresses security issues for your Windows operating system. in 17763.3532
  • security Security update: includes the September 2022 Security Updates in 17763.3406
  • security Addresses security issues for your Windows operating system. in 17763.3406
  • security Security update: includes the August 2022 Security Updates in 17763.3287
  • security Addresses security issues for your Windows operating system. in 17763.3287
  • security Security update: includes the July 2022 Security Updates in 17763.3165
  • security Addresses security issues for your Windows operating system. in 17763.3165
  • security Security update: includes the June 2022 Security Updates in 17763.3046
  • security Addresses security issues for your Windows operating system. in 17763.3046
  • security Security update: includes the May 2022 Security Updates in 17763.2928
  • security Addresses security issues for your Windows operating system. in 17763.2928
  • security Security update: includes the April 2022 Security Updates in 17763.2803
  • security Updates security for your Windows operating system. in 17763.2803
  • security Security update: includes the March 2022 Security Updates in 17763.2686
  • security Updates security for your Windows operating system. in 17763.2686
  • security Security update: includes the February 2022 Security Updates in 17763.2565
  • security Updates security for your Windows operating system. in 17763.2565
  • security Security update: includes the January 2022 Security Updates in 17763.2452
  • security Updates security for your Windows operating system. in 17763.2452

Deprecations

  • deprecated [Emoji Panel] The emoji panel (Windows key + period (.)) now supports GIPHY following the deprecation of Google's Tenor API. in 26100.33296
  • deprecated [PowerShell 2.0] Starting in August 2025, Windows 11, version 24H2, will no longer include Windows PowerShell 2.0. This legacy component was introduced in Windows 7 and officially deprecated in 2017. Most users won’t be affected, as newer versions such as PowerShell 5.1 and PowerShell 7.x remain… in 26100.7462
  • deprecated [PowerShell 2.0] Starting in September 2025, Windows Server 2025, will no longer include Windows PowerShell 2.0. This legacy component was introduced in Windows 7 and officially deprecated in 2017. Most users won’t be affected, as newer versions such as PowerShell 5.1 and PowerShell 7.x remain… in 26100.6584
  • deprecated [Line Printer Daemon (LPD) protocol] Using this deprecated protocol to print might not work as you expect or fail. This issue occurs after you install the July 9, 2024, and later updates. Note When it is no longer available, clients, like UNIX, that use it will not connect to a server to print.… in 20348.2655
  • deprecated [People app] After installing this update, the People icon on the taskbar will no longer respond. This feature is being deprecated in Windows Server 2019 and Windows 10, version 1809. in 17763.8146

Every release in between

securityFixes CVE-2026-96951: Windows Shell Security Feature Bypass Vulnerability
securityFixes CVE-2026-100202: Windows Message Queuing Queue Manager Remote Code Execution Vulnerability
securityFixes CVE-2026-100219: Microsoft QUIC Remote Code Execution Vulnerability
securityFixes CVE-2026-105016: Microsoft QUIC Remote Code Execution Vulnerability
securityFixes CVE-2026-70147: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-70153: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-96934: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-97814: Windows Text Shaping Remote Code Execution Vulnerability
securityFixes CVE-2026-100220: Windows Media Video Decoder Remote Code Execution Vulnerability
securityFixes CVE-2026-102214: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-102225: Windows Text Shaping Remote Code Execution Vulnerability
securityFixes CVE-2026-105733: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-108467: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-70250: Windows DHCP Client Remote Code Execution Vulnerability
securityFixes CVE-2026-83934: Windows GDI+ Remote Code Execution Vulnerability
securityFixes CVE-2026-88073: Windows Graphics Kernel Elevation of Privilege Vulnerability
securityFixes CVE-2026-96913: Windows Kernel Elevation of Privilege Vulnerability
securityFixes CVE-2026-96914: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
securityFixes CVE-2026-96952: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-108457: Microsoft Windows PDF Remote Code Execution Vulnerability
securityFixes CVE-2026-108460: Windows Message Queuing Remote Code Execution Vulnerability
securityFixes CVE-2026-69802: Network Device Enrollment Service (NDES) Remote Code Execution Vulnerability
securityFixes CVE-2026-70187: Windows Remote Desktop Services Remote Code Execution Vulnerability
securityFixes CVE-2026-70229: Windows Active Directory Domain Services Remote Code Execution Vulnerability
securityFixes CVE-2026-88117: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-88119: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-88120: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-88171: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-88174: Windows Deployment Services Remote Code Execution Vulnerability
securityFixes CVE-2026-100215: Microsoft Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-108130: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
securityFixes CVE-2026-108131: Active Directory Federation Services (AD FS) Spoofing Vulnerability
securityFixes CVE-2026-96222: Active Directory Federation Services (AD FS) Spoofing Vulnerability
securityFixes CVE-2026-108399: Windows Hyper-V Elevation of Privilege Vulnerability
securityFixes CVE-2026-102211: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
securityFixes CVE-2026-83917: Windows ALPC Elevation of Privilege Vulnerability
securitySecurity update: includes the October 2026 Security Updates
feature[Quick machine recovery] New! Quick machine recovery is now supported on Windows Server 2025. During outages, Quick machine recovery helps recover devices from critical boot failures by using Windows Recovery Environment (WinRE) to find and apply targeted remediations from Windows Update. The…
security[ReFS security] This update adds auditing and optional policy controls for ReFS volumes on externally attached storage devices. Auditing is enabled by default, while enforcement controls remain disabled by default to give administrators time to evaluate and prepare for future security hardening…
security[Security] This update adds support for ML-KEM post-quantum key exchange in Transport Layer Security (TLS) 1.3, helping protect encrypted connections against future quantum-computing threats.
+9 more items in the release notes
security[Remote Desktop Services (known issue)] Fixed: This update addresses an issue affecting Remote Desktop Services (RDS) after installing the September 2026 Windows security update (KB5122871). In affected environments, RDS might become unstable, causing RDP connection and sign-in failures or servers…
fix[8-channel or 3D audio modes] Fixed: Some USB Audio Class 1.0 devices functioning as expected in standard stereo configurations failed when using multichannel audio features, including 8-channel or 3D audio modes. (Note: There are other audio symptoms not resolved in this OOB update. See the…
securityFixes CVE-2026-81963: Windows Update Stack Elevation of Privilege Vulnerability
securityFixes CVE-2026-69579: Windows Message Queuing Remote Code Execution Vulnerability
securityFixes CVE-2026-69590: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
securityFixes CVE-2026-69595: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-69730: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-69769: Windows HTTP Print Provider Remote Code Execution Vulnerability
securityFixes CVE-2026-69829: Windows Shell Remote Code Execution Vulnerability
securityFixes CVE-2026-69845: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-70296: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-72979: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-72982: Windows Netlogon Remote Code Execution Vulnerability
securityFixes CVE-2026-72983: Internet Connection Sharing (ICS) Remote Code Execution Vulnerability
securityFixes CVE-2026-73009: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability
securityFixes CVE-2026-73010: Microsoft Failover Cluster Remote Code Execution Vulnerability
securityFixes CVE-2026-77493: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-78445: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-69499: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-69518: Windows Remote Desktop Remote Code Execution Vulnerability
securityFixes CVE-2026-69601: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-69603: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-69676: Windows Kerberos Remote Code Execution Vulnerability
securityFixes CVE-2026-69712: Windows Key Distribution Center Remote Code Execution Vulnerability
securityFixes CVE-2026-69860: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-70203: Windows Media Player Remote Code Execution Vulnerability
securityFixes CVE-2026-70586: Windows Paint Remote Code Execution Vulnerability
securityFixes CVE-2026-72950: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
securityFixes CVE-2026-72959: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
securityFixes CVE-2026-72960: Windows Media Player Remote Code Execution Vulnerability
securityFixes CVE-2026-72986: Graphic Fonts Remote Code Execution Vulnerability
securityFixes CVE-2026-73006: DirectWrite Remote Code Execution Vulnerability
securityFixes CVE-2026-73013: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-73018: Graphic Fonts Remote Code Execution Vulnerability
securityFixes CVE-2026-73023: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-77495: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-77504: Microsoft Office Word Remote Code Execution Vulnerability
securityFixes CVE-2026-80083: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-81955: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-69846: Windows Secure Kernel Mode Elevation of Privilege Vulnerability
securityFixes CVE-2026-69874: Windows ALPC Elevation of Privilege Vulnerability
securityFixes CVE-2026-69906: Windows Secure Kernel Mode Elevation of Privilege Vulnerability
+34 more items in the release notes
securityFixes CVE-2026-68820: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
securityFixes CVE-2026-62815: Microsoft QUIC Remote Code Execution Vulnerability
securityFixes CVE-2026-62878: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-62893: Windows Deployment Services TFTP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-65791: Windows iSCSI Target Service Remote Code Execution Vulnerability
securityFixes CVE-2026-62816: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
securityFixes CVE-2026-62817: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-62818: Windows Active Directory Certificate Services (AD CS) Remote Code Execution Vulnerability
securityFixes CVE-2026-62822: Windows GDI+ Remote Code Execution Vulnerability
securityFixes CVE-2026-62823: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-62819: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
securityFixes CVE-2026-62820: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-62889: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability
securityFixes CVE-2026-65679: Windows iSCSI Target Service Remote Code Execution Vulnerability
securityFixes CVE-2026-65789: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-65796: Windows iSCSI Target Service Remote Code Execution Vulnerability
securityFixes CVE-2026-66802: Windows Device Health Attestation (DHA) Remote Code Execution Vulnerability
securityFixes CVE-2026-71331: Windows Device Health Attestation (DHA) Remote Code Execution Vulnerability
securityFixes CVE-2026-62890: Windows GDI+ Elevation of Privilege Vulnerability
securityFixes CVE-2026-66799: Windows Key Guard Elevation of Privilege Vulnerability
securitySecurity update: includes the August 2026 Security Updates
other[File Explorer] This update improves File Explorer for files stored on DFS mapped drives, helping previews and copied files work as expected after reconnecting to the network.
feature[Windows] This update improves support for post‑quantum cryptography (PQC) certificates by restoring PQC options during Certificate Authority configuration and enabling successful enrollment with newly created PQC certificate templates.
feature[Secure Boot] This update includes additional high confidence device targeting data, increasing coverage of devices eligible to automatically receive new Secure Boot certificates. Certificate deployment via Windows updates continues across supported PCs and non-managed business devices in the…
deprecated[Emoji Panel] The emoji panel (Windows key + period (.)) now supports GIPHY following the deprecation of Google's Tenor API.
securityFixes CVE-2026-56155: Active Directory Federation Services Elevation of Privilege Vulnerability
securityFixes CVE-2026-57092: Microsoft Windows VMSwitch Elevation of Privilege Vulnerability
securityFixes CVE-2026-50518: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-56159: DHCP Server Service Remote Code Execution Vulnerability
securityFixes CVE-2026-56188: Windows Server Network driver Remote Code Execution Vulnerability
securityFixes CVE-2026-50380: Windows GDI+ Remote Code Execution Vulnerability
securityFixes CVE-2026-48564: DHCP Server Service Remote Code Execution Vulnerability
securityFixes CVE-2026-50370: DHCP Server Service Remote Code Execution Vulnerability
securityFixes CVE-2026-50382: DirectX Graphics Kernel Remote Code Execution Vulnerability
securityFixes CVE-2026-50444: Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability
securityFixes CVE-2026-50474: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-54121: Active Directory Certificate Services Elevation of Privilege Vulnerability
securityFixes CVE-2026-54982: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
securityFixes CVE-2026-54999: Windows TCP/IP Remote Code Execution Vulnerability
securityFixes CVE-2026-57087: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-57090: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-57094: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-58608: Windows Print Spooler Remote Code Execution Vulnerability
securityFixes CVE-2026-54128: Windows DHCP Client Remote Code Execution Vulnerability
securityFixes CVE-2026-54992: Microsoft Message Queuing Queue Manager Remote Code Execution Vulnerability
securityFixes CVE-2026-50680: Windows Hyper-V Elevation of Privilege Vulnerability
securityFixes CVE-2026-49164: Windows Active Directory Domain Services Remote Code Execution Vulnerability
securityFixes CVE-2026-50694: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability
securityFixes CVE-2026-54995: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
securityFixes CVE-2026-42982: Windows Secure Kernel Mode Elevation of Privilege Vulnerability
securityFixes CVE-2026-49796: Windows GDI+ Remote Code Execution Vulnerability
securityFixes CVE-2026-50327: Windows Media Remote Code Execution Vulnerability
securityFixes CVE-2026-50655: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-56189: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-58542: Windows Media Remote Code Execution Vulnerability
securityFixes CVE-2026-54127: Windows Hyper-V Elevation of Privilege Vulnerability
securityFixes CVE-2026-50392: Windows Secure Kernel Mode Elevation of Privilege Vulnerability
securityFixes CVE-2026-44815: DHCP Client Service Remote Code Execution Vulnerability
securityFixes CVE-2026-45657: Windows Kernel Remote Code Execution Vulnerability
securityFixes CVE-2026-47291: HTTP.sys Remote Code Execution Vulnerability
securityFixes CVE-2026-42985: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-45648: Windows Active Directory Domain Services Remote Code Execution Vulnerability
securityFixes CVE-2026-47289: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-44810: Microsoft Cryptographic Services Elevation of Privilege Vulnerability
securityFixes CVE-2026-45607: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-45641: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-47652: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-42987: Windows Deployment Services (WDS) Remote Code Execution
securityFixes CVE-2026-33828: Windows Device Health Attestation (DHA) Elevation of Privilege Vulnerability
securityFixes CVE-2026-44803: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-44812: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-48574: Windows Media Remote Code Execution Vulnerability
securityFixes CVE-2026-42992: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-44799: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-44801: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-47654: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-48563: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-47288: Windows Kerberos Key Distribution Center (KDC) Remote Code Execution
securityFixes CVE-2026-41089: Windows Netlogon Remote Code Execution Vulnerability
securityFixes CVE-2026-41096: Windows DNS Client Remote Code Execution Vulnerability
securityFixes CVE-2026-40403: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-35421: Windows GDI Remote Code Execution Vulnerability
securityFixes CVE-2026-32161: Windows Native WiFi Miniport Driver Remote Code Execution Vulnerability
security[Active Directory] Fixed: After installing the April 2026 Windows security update and restarting, domain controllers (DCs) with multi-domain forests that use Privileged Access Management (PAM), might experience startup issues. In some cases, Local Security Authority Subsystem Service (LSASS) might…
security[Windows update installation] Fixed: A small number of Windows Server 2025 devices might fail to install the April 14, 2026, Windows security update (KB5082063). When this issue occurs, affected devices might display one of the following error messages: “Install error: 0x800F0983” or “Some update…
feature[Secure Boot] With this update, Windows quality updates include additional high confidence device targeting data, increasing coverage of devices eligible to automatically receive new Secure Boot certificates. This targeting is based primarily on client device diagnostic data; due to limited data,…
other[System services and reliability] Improved: Windows Server 2025 now supports newer server platforms that expose more hardware error reporting features, including systems with up to 64 Machine Check Architecture (MCA) banks. This update ensures Windows parses and configures all supported error…
fix[File Explorer] Fixed: This update addresses an issue where folder renaming with desktop.ini files in File Explorer isn't work correctly. The LocalizedResourceName setting is ignored, so custom folder names don't appear.
other[Fonts & Display] Updates the Chinese fonts to support the GB18030‑2022A standard for character coverage and display.
security[Graphics] Fixed: This update addresses an issue where certain GPU configurations might recently have experienced a system error related to dxgmms2.sys, resulting in the KERNEL_SECURITY_CHECK_FAILURE error.
fix[Performance & Reliability] Fixed: This update disables the forwarded I/O feature in the NVMe stack by default.
featureNew! DNS over HTTPS (DoH) support for Windows DNS Server is now available in public preview. This preview enables evaluation of DoH for traffic between the server and its clients. This is intended for feedback only. It isn’t supported for production use, and it might contain issues. Functionality…
featureNew! Windows Server now supports random shuffling of resource records in DNS Server responses. This helps reduce scenarios where a single resource record becomes overloaded because it appears first in the returned list. To enable, create a DWORD registry key named “RandomShuffle” at: Registry Key:…
fix[File System] Fixed: After installing the Windows update released on and after January 13, 2026, some applications became unresponsive or encountered unexpected errors when opening files from or saving files to cloud-based storage, such as OneDrive or Dropbox. In certain Outlook configurations…
security[Remote Desktop] Fixed: After installing the January 2026 Windows security update (KB5073379), some users experienced sign-in failures during Remote Desktop connections. This issue affected authentication steps for different Remote Desktop applications on Windows such as the Windows App.
other[Compatibility] This update removes the following modem drivers: agrsm64.sys (x64), agrsm.sys (x86), smserl64.sys (x64) and smserial.sys (x86). Modem hardware dependent on these specific drivers will no longer work in Windows.
security[Credentials autofill] This update introduces a security hardening behavior restricting certain applications to autofill credentials during remote support sessions or automated authentication workflows. With this change, credential dialogs do not respond to virtual keyboard input from remote…
fix[Networking (known issue)] Fixed: This update addresses an issue where you might experience RemoteApp connection failures in Azure Virtual Desktop (AVD) environments. This might occur after installing KB5072033.
fix[Servicing (known issue] This update addresses an issue where devices that installed the out-of-band update (KB5070881) stopped receiving Hotpatch updates. Affected machines will resume Hotpatch updates after installing the January 2026 baseline update.
feature[Secure Boot] Starting with this update, Windows quality updates include a subset of high confidence device targeting data that identifies devices eligible to automatically receive new Secure Boot certificates. Devices will receive the new certificates only after demonstrating sufficient…
feature[Windows Deployment Services (WDS] This update introduces a change in behavior in which WDS will stop supporting hands-free deployment functionality by default. Detailed guidance for IT administrators is available in Windows Deployment Services (WDS) Hands‑Free Deployment Hardening Guidance.
security[WinSqlite3.dll] Fixed: The Windows core component, WinSqlite3.dll, has been updated. Previously, some security software might have detected this component as vulnerable. Note WinSqlite3.dll is a separate component from sqlite3.dll, which is found in application-specific directories and is not a…
feature[File Explorer] New! Dividers now separate top-level icons in the File Explorer context menu.
feature[General] New! When an app requests access to location, camera, microphone, or other device capabilities, Windows shows a redesigned system dialog box. To emphasize the privacy prompt, the screen dims slightly, and the prompt appears at the center of the screen.
feature[Search on the Taskbar] New! When you use Search from the Windows taskbar, a new grid view will help you more quickly and accurately identify the desired image within your search.
feature[Settings] New! Windows activation and expiration prompts match the Windows 11 design and appear as system notifications when action is required. There also have been improvements to messaging under Settings > System > Activation.
featureNew! The larger clock with seconds is now back in the notification center, displayed above the date and calendar. To turn this option on, go to Settings > Time & language > Date & time, and turn on Show time in the Notification Center.
fixFixed: If you accidentally click and drag your mouse across the taskbar preview thumbnail, the preview might stop working.
feature[Task Manager] New! Task Manager now uses standard metrics to show CPU workload consistently across all pages, aligning with industry standards and third-party tools. If you prefer the previous view, you can enable a new optional column called CPU Utility in the Details tab to display the earlier…
deprecated[PowerShell 2.0] Starting in August 2025, Windows 11, version 24H2, will no longer include Windows PowerShell 2.0. This legacy component was introduced in Windows 7 and officially deprecated in 2017. Most users won’t be affected, as newer versions such as PowerShell 5.1 and PowerShell 7.x remain…
other[Audio] Improved: Addressed an underlying audio service stops responding which could impact the ability to play audio in certain cases.
fix[Active Directory (known issue)]) Fixed: This update addresses an issue that occurs when you use ntdsutil.exe with 8KB database pages during an in-place upgrade to Windows Server 2025. The issue could damage the NTDS.dit database and prevent the Domain Controller from mounting it.
fix[Cryptographic Provider (known issue)] Fixed: Fixed: This update addresses an issue where you might see an error in Windows Event Viewer with Error ID 57. The event displays the following message: The 'Microsoft Pluton Cryptographic Provider' provider was not loaded because initialization failed.
fix[dbgcore.dll] Fixed: An underlying issue with dbgcore.dll could result in certain apps, including explorer.exe, crashing.
fix[Device management] Fixed: This update addresses an issue that prevented some system recovery features from working properly due to a temporary file sharing conflict. This affected certain device management tools and disrupted key functions on some devices.
fix[File system] Fixed: An issue in Resilient File System (ReFS) where using backup apps with large files could sometimes exhaust system memory.
fixFixed: Attempting to type Chinese with an IME after copying something with CTRL + C can result in the first character not displaying.
fixFixed: An underlying issue related to textinputframework.dll could result in certain apps like Sticky Notes and Notepad crashing.
fixFixed: This update addresses an issue with the Chinese (Simplified) Input Method Editor (IME) where some extended characters appear as empty boxes.
fix[Fixed This update addresses an issue that prevents typing on the touch keyboard when using the Microsoft Changjie, Microsoft Bopomofo, or Microsoft Japanese Input Method Editors (IMEs). The issue occurs after switching to a previous version of the IME.
fix[Kerberos]⁠ Fixed: There might be an underlying crash in Kerberos when attempting to access a cloud file share.
fix[Live captions] Fixed: Changing the opacity of live captions in Settings > Accessibility > Captions > Caption Style, has no effect.
other[Login] Improved: Addressed some underlying cases which could lead to you seeing a blank white screen, or a screen saying, "just a moment", for a few minutes when logging into your PC.
security[PowerShell 5.1] Invoke-WebRequest now includes a confirmation prompt with a security warning of script execution risk. You can choose to continue or cancel the request. For additional details, see CVE-2025-54100 and KB5074596: PowerShell 5.1: Preventing script execution from web content.
other[System Components] The AppX Deployment Service (Appxsvc) has moved to Automatic startup type to improve reliability in some isolated scenarios.
fix[Upgrade to Windows Server 2025] Fixed: On some Intel C2030 systems with Samsung Non-Volatile Memory Express (NVMe) devices running Windows Server 2022, the upgrade to Windows Server 2025 might fail. Affected systems might fail to boot with error code 0x7B indicating INACCESSIBLE_BOOT_DEVICE…
feature[Start menu] New! We are adding a Boolean option to the Configure Start Pins policy to allow admins to apply Start menu pins once. This means that a user will receive admin pins on day 0 but can then make any changes to their Start pinned layout and have those changes safeguarded.
feature[Post-Quantum Cryptography] New! Building on post-quantum cryptography (PQC) algorithms in SymCrypt, this update adds API support for NIST post-quantum cryptography algorithms ML-KEM and ML-DSA in accordance with FIPS 203 and FIPS 204 standards. These algorithms can be used for key exchange,…
fixFixed: This update addresses an issue in Active Directory where duplicate entries could be added to a multi-valued attribute that requires unique values. Schema modifications to these attributes could result in replication failures due to a schema mismatch.
fixFixed: This update addresses an issue that could cause incomplete synchronization of large Active Directory groups (over 10,000 members) when using the directory synchronization (DirSync) control for on-premises Active Directory Domain Services (AD DS). This problem occurred after installing…
security[App compatibility (known issue)] Fixed: This update addresses an issue that created unexpected User Account Control (UAC) prompts for some apps, including Autodesk AutoCAD. For more information, see Unexpected UAC prompts when running MSI repair operations after installing the August 2025 Windows…
security[Authentication] Fixed: This update addresses an issue that affects the Local Security Authority Subsystem Service (LSASS). LSASS might stop responding during machine password changes with specific audit settings.
fix[Desktop icons] Fixed: If you have an app pinned to your desktop and it updates, the app icon might not display correctly and instead show a white page.
fixFixed: If you open More options in File Explorer to view the full list of folders for the current path, the dropdown menu might not display completely, making the bottom part inaccessible.
fixFixed: File operation progress dialogs might stop appearing when displayed from apps.
fixFixed: Syncing more SharePoint sites to File Explorer might slow performance when navigating folders or opening the context menu. This can also affect how quickly files launch.
fixFixed: File Explorer Home might unexpectedly only display a single folder (for example, Desktop), rather than the expected content with recent files and more.
other[Graphics] An issue where external graphics cards connected through Thunderbolt weren’t always recognized in some cases.
fix[Notifications] Fixed: When you select a Windows notification, it might not bring the related app to the foreground as expected—for example, this can happen with Outlook notifications.
fix[Settings] Fixed: Settings might stop responding when you try to save Wi-Fi network credentials.
security[Stability issue] This update addresses an issue observed in rare cases after installing the May 2025 security update and subsequent updates causing devices to experience stability issues. Some devices became unresponsive and stopped responding in specific scenarios.
security[Windows Firewall (known issue)] Fixed: This update addresses an issue found in Event Viewer as Event 2042 for Windows Firewall with Advanced Security. The event appears as "Config Read Failed" with the message "More data is available." For more information about this issue, see "Error events are…
fix[Networking] Fixed: This update fixes an issue in the HTTP.sys request parser, a Windows component that reads and processes HTTP requests. The parser allowed a single line break within HTTP/1.1 chunk extensions, where the RFC 9112 standard requires a carriage return and line feed (CRLF) sequence…
security[Windows Server Update Services (WSUS)] Fixed: This update addresses a remote code execution (RCE) vulnerability that was identified in WSUS reporting web services. For more information about the security fix, see CVE-2025-59287.
security[USB] Fixed: After installing the Windows security update released on October 14, 2025 (KB5066835), USB devices, such as keyboards and mice, do not function in the Windows Recovery Environment (WinRE). This issue prevents navigation of any of the recovery options within WinRE. Note that the USB…
featureNew! We are rolling out some small changes in the European Economic Area (EEA) region for default browsers through the Set default button in Settings > Apps > Default apps:
featureAdditional file and link types will be set for the new default browser, if it registers them.
featureThe new default browser will be pinned to the Taskbar and Start menu unless you choose not to pin it by clearing the checkboxes.
otherThere is now a separate one-click button for browsers to change your .pdf default, if the browser registers for the .pdf file type.
featureNew! The Screen Curtain feature in Narrator helps protect your privacy and improve focus by blacking out the screen while Narrator reads content aloud. This is especially helpful in public or shared spaces, where you can work with sensitive information without others seeing your screen. To turn on…
featureNew! Narrator makes it easier to discover and learn about its features directly within the experience. Whether you're new or exploring advanced options, Narrator will guide you through the latest updates using a series of steps and prompts that explain each new feature and change.
featureNew! The country or region selected during device setup now appears under Settings > Time & language > Language & region.
fixFixed: The storage card in Settings > System > About shows an incorrect or unreadable character instead of the proper disk size.
featureNew! In addition to the new grouping of the Accessibility menu in Quick settings, there are text descriptions for the assistive technologies like Narrator, Voice access, and more for easier identification and learning.
featureNew! Adjusted the indicator (pill) under taskbar apps to make it wider and more visible.
fixFixed: WIN + CTRL + Number doesn't work anymore for switching windows of an open app in the taskbar.
featureNew! When you share links or web content using the Windows share window, you'll see a visual preview for that content.
featureNew! In the Windows share window, you can select a compression level—High, Medium, or Low Quality—when editing and sharing images, instead of selecting from a 0–100 scale.
other[Color] Improved: Adjusted the location of the intensity and color boost sliders under Settings > Accessibility > Color Filters, so the color previews at the top of the page remain visible while adjusting the sliders.
otherImproved: Performance has been enhanced when extracting archive files - this will particularly help in the case of copy pasting large numbers of files out of large 7z or .rar archives.
securityNew! After installing this update, File Explorer automatically disables the preview feature for files downloaded from the internet. This change is designed to enhance security by preventing a vulnerability when users preview potentially unsafe files. For details, including steps to unblock files,…
otherImproved: Made underlying changes to enhance display related user experiences, including reducing screen flashing during certain display configuration transitions and eliminating unnecessary display resets that occurred in some cases.
fixFixed: Some displays might be unexpectedly green.
fixFixed: If User Account Control (UAC) is set to Always Notify and the button under Settings > System > Display color calibration is selected for your display and canceled, Settings will stop responding.
fix[Input] Fixed: Typing in Japanese with the touch keyboard might stop working after switching to typing with an English keyboard and then switching back.
fix[Language] Fixed: After you install Windows Server 2025, you might see garbled or unreadable text in some feature names and descriptions in the Add Roles and Features wizard in Server Manager. This issue affects the Windows Admin Center Setup and Network ATC (Automatic Traffic Control) features in…
fix[MSFTEdit.dll] Fixed: Some apps like Sticky Notes and dxdiag might stop responding when the display language is set to Arabic or Hebrew display.
fix[Networking (known issue)]⁠ Fixed: This update addresses an issue where you might not be able to connect to shared files and folders if you're using the Server Message Block (SMB) v1 protocol on NetBIOS over TCP/IP NetBIOS (NetBT). This can happen after installing update KB5065426.
fix[Quick Settings] Fixed: The top three buttons in the top row don’t respond when selecting to enable or disable them.
fix[Performance] Fixed: This update addresses an issue to maintain efficiency of Storage Spaces Direct (S2D). When running complex software defined data center (SDDC) related workflows, it’s possible the system might become unresponsive.
fix[Printing] Fixed: Printed lines might be unexpectedly thicker than expected.
fix[Scripting] Fixed: Running a script on a remote Server Message Block (SMB) share might take an unexpectedly long time if the share is hosted on an older Windows Server version like Windows Server 2019.
fix[Storage optimization] Fixed: An issue that prevented unused language packs and Feature on Demand packages from being fully removed, which led to unnecessary storage use and longer Windows Update installation times.
fixThis update addresses an issue that could cause Windows Search to successfully load very slowly, taking over 10 seconds to load before you can use it.
fixFixed: This update enhances the reliability of Windows Search and resolves an issue that prevented users from typing in Windows Search in some cases. Note: These fixes don't address an issue that might prevent Search from loading at all.
fixFixed: When you press ALT + Tab to switch out of a full screen app, other windows like Windows Terminal might stop responding.
fixFixed: An underlying issue might lead to unexpected changes to window size and position after sleep and resume on some devices.
fixFixed: Explorer.exe might stop working unexpectedly when a window is dragged, if window snapping is enabled.
other[Compatibility] This update removes the ltmdm64.sys driver. Fax modem hardware dependent on this specific driver will no longer work in Windows.
security[Cryptography] This update enforces a security hardening improvement by requiring use of Key Storage Provider (KSP) instead of Cryptographic Service Provider {CSP) for RSA-based smart card certificates. If you experience problems with smart card authentication as a result of this design change,…
fix[Virtualization and platform compatibility] Fixed: This update addresses an issue that affects Microsoft Office applications running in Microsoft Application Virtualization (App-V) environments. The failure occurred due to a double handle closure in the AppVEntSubsystems32 or AppVEntSubsystems64…
featureNew! Find answers to commonly asked questions about Windows Server in the new FAQs section under Settings > System > About. It covers topics like system setup, performance, and compatibility—all in one place.
featureNew! The dialog to rename your printer under Settings > Bluetooth & devices > Printers & scanners now matches the Windows Server look and feel.
featureNew! Mouse settings are now easier to access under Settings > Accessibility > Mouse and Mouse pointer and touch, with no need to open Control Panel. You’ll find updated icons for Mouse pointer speed and Enhance mouse pointer precision, plus options for customizing the mouse indicator, pointer…
featureNew! Admins can configure taskbar policies so users can unpin specific apps, ensuring they are not repinned during the next policy refresh. To turn on this feature, use the new PinGeneration option.
fixFixed: When using Tab and Shift + Tab to move keyboard focus around the taskbar, if you go backwards at least once you can get keyboard focus stuck on the taskbar frame, which could lead screen readers to just say “pane.”
fixFixed: On login, the keyboard focus might unexpectedly be set to widgets in the taskbar, which can cause widgets to open.
featureNew! Voice access now includes an in-product experience that highlights new features and improvements. Use the settings menu to open or dismiss it anytime.
featureNew! You can find voice access under Accessibility in Quick Settings at the lower-right corner of your screen near the clock. To open Quick Settings, select the network, volume, or battery icon.
fixFixed: Voice access might stop responding with error “working on it” when dictating.
feature[Voice Typing] New! You control the profanity filter. When you turn it on, it masks profanity with asterisks. When you turn it off, words appear as spoken. To change the setting, open voice typing (Win + H), select the settings icon, and turn on the Filter profanity switch.
featureNew! Make last-minute edits such as cropping, rotating, and adding filters to images shared through the Windows Share window.
featureNew! When you drag a local file from File Explorer or your desktop, a tray appears at the top of your screen. Drop the file into a suggested app or select More to open the Windows share window.
featureNew! Add apps that support sharing directly to the right-click menu for local files in File Explorer or on the desktop.
fix[BitLocker] Fixed: This update addresses an issue where devices with BitLocker on removable drives could encounter a blue screen error after resuming from sleep or hybrid-booting.
fix[Bluetooth] Fixed: Settings might stop responding when loading information about Bluetooth devices.
fix[Boot menu screens] Fixed: This update addresses the issue where early boot screens, such as BitLocker PIN, BitLocker Recovery key, and boot menu screens, render slowly.
fix[Display] Fixed: Unexpected changes to screen size and window position might occur after waking from sleep for some devices.
fix[File Explorer] Fixed: If you have disconnected network drives while conducting a search from Home, it might prevent searches from executing and you remain on Home.
fixFixed: Voice typing won't start from the touch keyboard when using the Chinese (Simplified) narrow layout.
fixFixed: When using the Symbols section of the touch keyboard, pressing the key to change pages might unexpectedly insert a character into password fields.
fixFixed: Typing in some apps might stop working after disconnecting from a remote desktop session.
fix[JPG] Fixed: When using CopyPixels the pixels may be unexpectedly inverted in certain cases.
fix[Memory leak] Fixed: This update addresses an issue in the Input Service that causes increased memory usage, potentially impacting performance in multi-user, multi-lingual, and remote desktop usage.
fix[Microsoft Management Console (MMC)] Fixed: Improved the colors used in MMC when items are selected, both generally, and when contrast modes are enabled.
fix[Network]⁠ Fixed: This update addresses an issue where Windows Server 2025 always shows the network as "public" on new domain controllers. It now checks for a domain controller name before using loopback addresses to ensure proper Lightweight Directory Access Protocol (LDAP) binding.
fix[Print] Fixed: Non-admin users can't uninstall printers that they’ve added.
security[Print] To meet security goals and support new print capabilities, this update transitions Windows printing components from MSVCRT to a modern Universal C Runtime Library. As a result of this change, print clients running versions of Windows prior to Windows 10, version 2004 and Windows Server,…
otherThe printer driver is not installed on this computer. Some printer properties will not be accessible unless you install the print driver.
otherWindows cannot connect to the printer.
fix[USB] Fixed: Certain USB devices might become disconnected after sleep, until you reboot your PC.
security[App compatibility (known issue)] Fixed: Addresses an issue that caused non-admin users to receive unexpected User Account Control (UAC) prompts when MSI installers perform certain custom actions. These actions might include configuration or repair operations in the foreground or background,…
security[File server] This update enabled auditing SMB client compatibility for SMB Server signing as well as SMB Server EPA. This allows customers to assess their environment and identify any potential device or software incompatibility issues before deploying the hardening measures that are already…
deprecated[PowerShell 2.0] Starting in September 2025, Windows Server 2025, will no longer include Windows PowerShell 2.0. This legacy component was introduced in Windows 7 and officially deprecated in 2017. Most users won’t be affected, as newer versions such as PowerShell 5.1 and PowerShell 7.x remain…
fix[Display] Fixed: You might need to press the Win + P keyboard shortcut twice to switch topologies.
fix[Dynamic Host Configuration Protocol (DHCP Client)] Fixed: This update addresses an issue affecting internet connectivity on devices after resuming from sleep mode. Users might experience intermittent internet connections.
fix[ExtFloodFill] Fixed: There's an uncommon issue with ExtFloodFill where a horizontal line might appear in the incorrect location in Win32 applications.
fix[File Systems] Fixed: This update addresses an issue when the operating system stops unexpectedly, and an error message appears on a blue screen during normal usage with a user profile redirected to a network VHD(X).
fixFixed: As part of our ongoing commitment to improving File Explorer accessibility, this release includes increased support for the text scaling (Settings > Accessibility > Text size) across File Explorer, File Open/Save dialogs and the copy dialogs.
fixFixed: Improved the performance of extracting zipped files, particularly in the case where you’re unzipping a large number of small files.
fixFixed: The address bar in File Explorer might unexpectedly not show a path after opening.
fix[Graphics] Fixed: External graphics cards connected over Thunderbolt might unexpectedly not be discoverable in some cases.
fix[Hyper-V Manager] Fixed: Hyper-V Manager unexpectedly shows 0% CPU usage for virtual machines.
fix[Imaging] Fixed: This update addresses an issue where some content pages with JPEG images were not displaying.
fix[Input (known issue)] Fixed: An issue when using the Microsoft Changjie IME (input method editor) for Traditional Chinese might cause problems such as not being able to form or select words, unresponsive spacebar or blank key, incorrect word output, or a broken candidate window display. This can…
fix[Networking] Fixed: This update addresses an issue affecting Storage Spaces Direct (S2D) and Remote Direct Memory Access (RDMA) with SMB Direct in certain network configurations. Previously, the issue disrupted network setup and caused a loss of cluster management capabilities.
fixFixed: You can’t use touch gestures to view the list of apps pinned in the Start menu.
fixFixed: The Sign out and More options buttons in the Start menu account manager might not be visible with increased text size.
fixFixed: The underlines beneath the app icons in the taskbar may remain visible even after the apps have been closed.
fixFixed: If you use the arrow keys after pressing the Windows key + T, the arrows move in the wrong direction for Arabic and Hebrew display languages.
fix[Windows Setup] Fixed: If you install Windows 11, version 24H2 with Windows Setup and run System Preparation (Sysprep) afterwards, the boot file configuration is not properly updated, resulting in push-button reset options not working.
fix[Windows Update] Fixed: If you install Windows Server 2025 with Windows Setup and run System Preparation (Sysprep) afterwards, the boot file configuration is not properly updated, resulting in push-button reset options not working.
other[Desktop icons] The logic for apps pinned to the desktop has been updated, so that packaged apps no longer show an accent colored backplate. For example, if you were to drag and drop Snipping Tool from the apps list in Start to the desktop the icons should be bigger and easier to see now.
security[Fix for Azure Virtual Machines with Trusted Launch disabled] This update addresses an issue that prevented some virtual machines (VMs) from starting when Virtualization-Based Security (VBS) was enabled. It affected VMs using version 8.0 (a non-default version) where VBS was offered by the host.…
securitySecurity update: includes the July 2025 Security Updates
fix[Application installation] Fixed: The MsiCloseHandle API experiences prolonged execution time when handling MSI files containing a large number of files.
fixFixed: Kerberos authentication stops responding in certain scenarios when RC4 is used for encryption.
fixFixed: FIDO Cached Credential Logon might stop responding in certain cases when a device is Hybrid Domain Joined.
fixFixed: Opening certain apps after a password change could result in an unexpected lockout if the account lockout policy is enabled.
fix[Boot menu] Fixed: If an update stops responding and rolls back, it might result in an unnecessary and non-functional boot menu entry. This fix stops devices from encountering this issue in the future. If you have already encountered this issue, you can manage extra boot entries in the Boot…
fixFixed: Under Settings > System > Display > Color profile, go to Color management, it might not display the expected color profile list for the selected monitor.
fixFixed: The color profile settings might not be applied after resuming from sleep.
fix[Cryptography] Fixed: This update addresses an issue that was impacting Credential Roaming, preventing certificates and keys from being roamed into Active Directory and made available on users' machines.
fix[Direct 3D Ecosystem] Fixed: This update addresses an issue where certain third-party apps might stop responding on the graphics settings page.
fix[File Explorer] Fixed: In some cases, the See more menu in the File Explorer command bar opens in the wrong direction.
fix[General reliability] Fixed: An underlying issue might lead to your PC experiencing a bugcheck (blue screen) with PDC_WATCHDOG_TIMEOUT when resuming from sleep.
fix[Graphics] Fixed: There is an issue where certain third-party apps might render the graphics settings page unresponsive.
fixFixed: Improved ctfmon.exe reliability, by addressing a system restart which could impact typing.
fixFixed: ctfmon.exe might restart when copying data from certain apps.
fix[Local Administrator Password Solution (LAPS)] This update addresses an issue with Windows LAPS. LAPS settings would not be preserved after an in-place upgrade.
fix[Network] Fixed: The description of the virtual NIC doesn't display correctly in Network Connections (ncpa.cpl), showing invalid characters.
fix[OOBE] Fixed: Addresses an issue that prevents the ESP from running every time a new user logs onto the device even when configured by policy.
fix[PowerShell] Fixed: This update resolves an issue where critical PowerShell modules required for device configuration weren't run under Windows Defender Application Control (WDAC) policies.
fix[Remote desktop] Fixed: Remote Desktop won't use UDP, only TCP.
fix[Screen orientation] Fixed: Screen might unexpectedly change orientation coming out of sleep on 2-in-1 devices.
other[Task manager] Task Manager will now calculate CPU usage differently for Processes, Performance, and Users pages. It will use standard metrics to display CPU workload consistently across all pages and align with industry standards and third-party tools. To ensure backward compatibility, an…
fix[DHCP Server (known issue] Fixed: An issue in which the DHCP Server service might intermittently stop responding and affects IP renewal for clients.
feature[Narrator] New! There are new functions for Narrator scan mode. You can use the comma ( , ) to jump to the start of an item, such as a large table, long list, or other content. Use the period ( . ) to jump to the end of an item. This is especially helpful when reading long emails, news articles,…
fixFixed: Improves performance when it loads folders that have a large number of media files.
fixFixed: When you enter a URL in the address bar, it might not go to the location.
fixFixed: The address bar overlaps files when you use the F11 full-screen mode.
fixFixed: The context menu opens slowly when you right-click cloud files.
otherThumbnails for cloud files display more consistently in search results.
fix[GDI+] Fixed: After you use GDI+ to shrink an image, the colors of the image might be wrong.
fix[Get Help app] Fixed: It fails to open on Windows Server 2025.
fix[Hyper-V] Fixed: Hyper-V Quick Create shows error "Could not load file or assembly Newtonsoft.Json".
fix[Live captions] Fixed: If you disconnect an external monitor, the live captions window might not show.
fix[Mouse] Fixed: In Settings > Accessibility > Mouse pointer and touch, you can choose a color for the mouse that is not the default. When you choose a color, it reverts to white after the User Account Control (UAC) dialog appears.
fix[Open Secure Shell (OpenSSH) (known issue)] Fixed: The service fails to start, which stops SSH connections. There is no detailed logging, and you must run the sshd.exe process manually.
fixFixed: There are display rendering issues when you connect to certain PCs.
fixFixed It stops responding.
fix[Scanners] Fixed: Apps might not recognize a scanner is available when it is connected.
fix[Start menu] Fixed: The colors are wrong when you open the account manager flyout menu. This occurs when you use a mixed dark and light custom mode in Settings > Personalization > Colors.
fix[Task Manager]⁠ Fixed: It might identify a Hard Disk Drive (HDD) as a Solid State Drive (SSD).
fix[Windows Hello]⁠ Fixed: This update addresses an issue that prevents users from signing in with self-signed certificates when using Windows Hello for Business with the Key Trust model.
fix[Hyper-V Platform] Fixed: An issue in the direct send path for a guest physical address (GPA) where confidential virtual machines running on Hyper-V with Windows Server 2025 might intermittently stop responding or restart unexpectedly, affecting service availability and requiring manual…
feature[Fonts]New! This update includes Simsun-ExtG, a new simplified Chinese font featuring the Biangbiang noodles character. Some apps might not display these extension characters yet. supports 9,753 ideographs in Unicode Extensions G, H, and I. See the following list.
otherUnicode range G 30000-3134A (4,939 chars)
otherUnicode range H 31350-323AF (4,192 chars)
otherUnicode range I 2EBF0-2EE5D (622 chars)
feature[Settings]New! Change time zones in Settings > Time & Language > Date & Time. Admins You don’t have to be an admin to make this change.
fix[Audio] Fixed: This update addresses an issue where the audio form your microphone might mute unexpectedly.
other[Chinese Pinyin Input Method Editor (IME)]⁠ With this update, Bing will no longer provide automatic suggestions in the search box for search engines such as Baidu. To get manual suggestions, use Ctrl + Tab or the arrow button.
fix[Eye controller] Fixed: The eye controller app doesn’t launch.
fixFixed: After performing a search, it might repeat unexpectedly.
fixFixed: The date and time properties of a file might update after you copy it.
fixFixed: Icons on the details pane might not update as you expect when you change a theme. This makes it hard to view the change when you switch between dark and light themes.
fixFixed: The search box might lose input focus as you type.
fix[Memory leak] Fixed: Leaks occur when predictive input ideas show.
fixFixed: The mouse cursor might disappear. This occurs when you hover over text fields in certain applications.
fixFixed: If you turn on pointer trails, the mouse cursor becomes transparent, and a black box appears behind it.
fixFixed: The mouse cursor might stutter when it moves across the screen. This occurs even when the system is not using a lot of resources.
fix[Pinyin Input Method Editor (IME)] Fixed: When you switch app windows, the IME language might change from Chinese to English.
fix[Snipping Tool] Fixed: Snipping Tool screenshots might be distorted. This occurs when you use two or more monitors that have different display scaling.
fix[Task Manager] Fixed: After closing the app, it remains open longer than expected.
fix[USB audio device drivers] Fixed: The code 10 error message, “This device cannot start” appears. This occurs when you connect to certain external audio management devices.
security[Wi-Fi] Fixed: The Windows Security dialog might stop responding when you sign into certain Wi-Fi networks. This issue might also occur in some other options in Settings.
fix[Windows Hello]⁠ Fixed: This update addresses an edge case issue where Windows Hello doesn’t work on devices with System Guard Secure Launch or Dynamic Root of Trust for Measurement (DRTM) features enabled, preventing users from logging in with facial recognition or PIN. This issue was observed…
security[Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
fix[Windows update installation] Fixed: Cumulative updates might not install. The error code is 0x800736b3. This occurs after a feature on demand is unable to install.
other[Secure Boot Advanced Targeting (SBAT) and Linux Extensible Firmware Interface (EFI)] This update applies improvements to SBAT for the detection of Linux systems.
security[Microsoft RPC Netlogon protocol]⁠ This update includes a security hardening change to the Microsoft RPC Netlogon protocol. This change improves security by tightening access checks for a set of remote procedure call (RPC) requests. After this update is installed, Active Directory domain…
securitySecurity update: includes the April 2025 Security Updates
feature[IFilters] New! Windows Search runs IFilters in Less Privileged App Containers (LPAC). LPACs are like app containers, but they minimize permissions by default. Processes running in LPACs only access necessary resources and don’t have access to sensitive system components and data. This mitigates…
feature[Input Method Editor (IME)] New! After you install this update, the IME toolbar will hide when apps are in full screen mode. This only occurs when the IME toolbar is active, and you type Chinese or Japanese characters⁠,⁠
feature[Narrator]New! Narrator scan mode now includes new functions. Skip past links (N) lets you navigate directly to text after a link, useful for long emails, articles, or wiki pages. Jump to lists (L) quickly accesses lists in web pages or documents. To use these features, turn on Narrator (Windows…
featureNew! The Disconnect and Logoff dialogs now support dark mode and text scaling.
featureNew! The Performance section now shows the type for each disk.
fixFixed: When you select Automatically hide the taskbar, the search box appears as an icon rather than a search box.
fixFixed: The Users page might cause Task Manager to stop responding when you use the keyboard.
fix[Authentication] This update addresses an issue affecting machine password rotation in the Identity Update Manager certificate/Public Key Cryptography for Initial Authentication (PKNIT) path. This issue occurred particularly when Kerberos was used and Credential Guard was enabled, potentially…
other[Daylight Saving Time (DST)] Update for the Aysen region in Chile to support the government DST change order in 2025. For more info about DST changes, see the Daylight Saving Time & Time Zone Blog.
fix[Deployment Image Servicing and Management (DISM)] Fixed: The StartComponentCleanup task doesn't work properly. It stops at 71% and shows error 6842.
fix[JPG files] Fixed: You cannot use an API to find rotation information.
security[Performance] Fixed: After installing the Windows security update (KB5051987), released February 11, 2025, and later updates, on Windows Server 2025 devices, the SQL Server Launchpad service might not start if SQL Server Machine Learning Services is installed.
fix[PowerShell] Fixed: The Get-WindowsCapability command sometimes stops responding. Then you must restart your PC.
fix[Remote Desktop] Fixed: This update addresses an issue where Remote Desktop sessions were freezing shortly after connection. With this issue, mouse and keyboard input became unresponsive within the session, requiring you to disconnect and reconnect.
fix[Windows Subsystem for Linux (WSL)] Fixed: It stops working and will not start up.
fix[Windows Update] Fixed: When you install an update, you might get error 0x800f0905.
fix[Windows copy] Fixed: This update addresses a memory leak that might occur during Windows copy operations.
security[OS Security] After installing this update or a later Windows update, a new %systemdrive%\inetpub folder will be created on your device. This folder should not be deleted regardless of whether Internet Information Services (IIS) is enabled on the target device. This behavior is part of changes…
security[Kerberos Authentication] Change of behavior: Adds protections for a vulnerability which occurs when a certificate authority is part of the Windows root store but not the NTAuth store. This change enabled by default might cause Event ID: 45 events to be logged on the domain controller. For more…
security[Windows Hello] After installing this update or a later Windows update, for enhanced security, Windows Hello facial recognition requires color cameras to see a visible face when signing in. For more information, see CVE-2025-26644.
securitySecurity update: includes the March 2025 Security Updates
featureNew! This update adds a new Narrator shortcut. To copy the last spoken content by Narrator to the clipboard, press Narrator key + Ctrl + X. This shortcut is especially useful for quickly copying content such as codes or numbers.
featureNew! It will now auto read the contents of an email message in the new Outlook, similar to how it works in classic Outlook.
feature[Networking] New! The netsh wlan show networks command can now read SSIDs that are encoded using UTF-8. This means that Wi-Fi SSIDs that have Unicode characters, such as emoji, display properly in netsh output.
other[Daylight savings time (DST)]⁠ This update supports (DST) changes in Paraguay.
fix[Live kernel debug files (dumps)] Fixed: The win32kbase.sys creates live kernel debug files when it should not.
fix[Scanning apps] Fixed: This update addresses the issue where certain scanners were not being detected despite being connected.
fix[Service for User to Self (S4U2self)] Fixed: Your device might have issues using S4U2self to authenticate. This occurs if Credential Guard is off, and the device joins an Active Directory domain that doesn't allow the RC4 cipher.
fix[sfc /scannow command] Fixed: You get errors every time you run the command.
feature[Virtual hard disk (VHD/VHDx)] New! This update adds a detach virtual hard disk button to Settings. In the properties for your VHD or VHDx, go to Settings > System > Storage > Disks & Volumes.
security[Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds more drivers to the list that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
fix[Winlogon] Fixed: A stop error occurs during shutdown.
securitySecurity update: includes the February 2025 Security Updates
fix[Digital/Analog converter (DAC) (known issue)] Fixed: You might experience issues with USB audio devices. This is more likely when you use a DAC audio driver based on USB 1.0. USB audio devices might stop working, which stops playback.
security[USB cameras] Fixed: Your device does not recognize the camera is on. This issue occurs after you install the January 2025 security update.
securitySecurity update: includes the January 2025 Security Updates
security[Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
securitySecurity update: includes the December 2024 Security Updates
securityThis update makes miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release.
securitySecurity update: includes the November 2024 Security Updates
fix[Task Manager] Fixed: The count for the number of groups is wrong or always zero (0) on the Processes tab. This occurs when you turn on “Group by type.”
fix[Windows Subsystem for Linux (WSL)] Fixed: You cannot access your Dev Drive.
fix[Setup] Fixed: For some hardware configurations, setup might stop responding on the first screen of the installation. This lack of response might last for up to 40 minutes.
fix[Internet connection] Fixed: A small number of devices cannot connect to the internet. This occurs when a DHCP server response has duplicate DHCP options. This stops IPv4 connections on certain networks.
securityFixes CVE-2026-96951: Windows Shell Security Feature Bypass Vulnerability
securityFixes CVE-2026-100202: Windows Message Queuing Queue Manager Remote Code Execution Vulnerability
securityFixes CVE-2026-100219: Microsoft QUIC Remote Code Execution Vulnerability
securityFixes CVE-2026-105016: Microsoft QUIC Remote Code Execution Vulnerability
securityFixes CVE-2026-70147: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-70153: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-96934: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-97814: Windows Text Shaping Remote Code Execution Vulnerability
securityFixes CVE-2026-100220: Windows Media Video Decoder Remote Code Execution Vulnerability
securityFixes CVE-2026-102214: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-102225: Windows Text Shaping Remote Code Execution Vulnerability
securityFixes CVE-2026-105733: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-108467: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-70250: Windows DHCP Client Remote Code Execution Vulnerability
securityFixes CVE-2026-83934: Windows GDI+ Remote Code Execution Vulnerability
securityFixes CVE-2026-96913: Windows Kernel Elevation of Privilege Vulnerability
securityFixes CVE-2026-96914: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
securityFixes CVE-2026-96952: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-108457: Microsoft Windows PDF Remote Code Execution Vulnerability
securityFixes CVE-2026-108460: Windows Message Queuing Remote Code Execution Vulnerability
securityFixes CVE-2026-69802: Network Device Enrollment Service (NDES) Remote Code Execution Vulnerability
securityFixes CVE-2026-70187: Windows Remote Desktop Services Remote Code Execution Vulnerability
securityFixes CVE-2026-70229: Windows Active Directory Domain Services Remote Code Execution Vulnerability
securityFixes CVE-2026-88117: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-88119: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-88120: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-88171: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-88174: Windows Deployment Services Remote Code Execution Vulnerability
securityFixes CVE-2026-100215: Microsoft Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-108131: Active Directory Federation Services (AD FS) Spoofing Vulnerability
securityFixes CVE-2026-96222: Active Directory Federation Services (AD FS) Spoofing Vulnerability
securityFixes CVE-2026-108399: Windows Hyper-V Elevation of Privilege Vulnerability
securityFixes CVE-2026-102211: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
securityFixes CVE-2026-83917: Windows ALPC Elevation of Privilege Vulnerability
securitySecurity update: includes the October 2026 Security Updates
feature[Authentication] Enhanced NTLM auditing is now available on Windows Server 2022 and 2019. The new auditing capabilities provide greater visibility into NTLM authentication, helping administrators identify who is using NTLM, why NTLM was selected, and where NTLM authentication is occurring. This…
featureThis update enables permanent Daylight Savings Time (DST) support for British Columbia and Alberta starting in November 2026.
featureThis update introduces the new time zone Manitoba Standard Time "(UTC-5:00) Manitoba".
security[Security] This update upgrades the version of cURL included with Windows to version 8.21.0.
security[ReFS security] This update adds auditing and optional policy controls for ReFS volumes on externally attached storage devices. Auditing is enabled by default, while enforcement controls remain disabled by default to give administrators time to evaluate and prepare for future security hardening…
+3 more items in the release notes
security[Remote Desktop Services (known issue)] Fixed: This update addresses an issue affecting Remote Desktop Services (RDS) after installing the September 2026 Windows security update (KB5122882). In affected environments, RDS might become unstable, causing RDP connection and sign-in failures or servers…
fix[8-channel or 3D audio modes] Fixed: Some USB Audio Class 1.0 devices functioning as expected in standard stereo configurations failed when using multichannel audio features, including 8-channel or 3D audio modes. (Note: There are other audio symptoms not resolved in this OOB update. See the…
securityFixes CVE-2026-85880: Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability
securityFixes CVE-2026-69579: Windows Message Queuing Remote Code Execution Vulnerability
securityFixes CVE-2026-69590: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
securityFixes CVE-2026-69595: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-69730: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-69769: Windows HTTP Print Provider Remote Code Execution Vulnerability
securityFixes CVE-2026-69829: Windows Shell Remote Code Execution Vulnerability
securityFixes CVE-2026-69845: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-70296: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-72979: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-72982: Windows Netlogon Remote Code Execution Vulnerability
securityFixes CVE-2026-72983: Internet Connection Sharing (ICS) Remote Code Execution Vulnerability
securityFixes CVE-2026-73009: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability
securityFixes CVE-2026-73010: Microsoft Failover Cluster Remote Code Execution Vulnerability
securityFixes CVE-2026-77493: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-78445: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-69499: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-69518: Windows Remote Desktop Remote Code Execution Vulnerability
securityFixes CVE-2026-69601: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-69603: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-69676: Windows Kerberos Remote Code Execution Vulnerability
securityFixes CVE-2026-69712: Windows Key Distribution Center Remote Code Execution Vulnerability
securityFixes CVE-2026-69860: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-70203: Windows Media Player Remote Code Execution Vulnerability
securityFixes CVE-2026-70586: Windows Paint Remote Code Execution Vulnerability
securityFixes CVE-2026-72950: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
securityFixes CVE-2026-72959: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
securityFixes CVE-2026-72960: Windows Media Player Remote Code Execution Vulnerability
securityFixes CVE-2026-72986: Graphic Fonts Remote Code Execution Vulnerability
securityFixes CVE-2026-73006: DirectWrite Remote Code Execution Vulnerability
securityFixes CVE-2026-73013: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-73018: Graphic Fonts Remote Code Execution Vulnerability
securityFixes CVE-2026-73023: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-77495: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-77504: Microsoft Office Word Remote Code Execution Vulnerability
securityFixes CVE-2026-80083: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-81955: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-69846: Windows Secure Kernel Mode Elevation of Privilege Vulnerability
securityFixes CVE-2026-69874: Windows ALPC Elevation of Privilege Vulnerability
securityFixes CVE-2026-69906: Windows Secure Kernel Mode Elevation of Privilege Vulnerability
+28 more items in the release notes
securityFixes CVE-2026-68820: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
securityFixes CVE-2026-62815: Microsoft QUIC Remote Code Execution Vulnerability
securityFixes CVE-2026-62878: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-62893: Windows Deployment Services TFTP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-65791: Windows iSCSI Target Service Remote Code Execution Vulnerability
securityFixes CVE-2026-62816: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
securityFixes CVE-2026-62817: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-62818: Windows Active Directory Certificate Services (AD CS) Remote Code Execution Vulnerability
securityFixes CVE-2026-62822: Windows GDI+ Remote Code Execution Vulnerability
securityFixes CVE-2026-62823: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-62819: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
securityFixes CVE-2026-62820: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-62889: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability
securityFixes CVE-2026-65679: Windows iSCSI Target Service Remote Code Execution Vulnerability
securityFixes CVE-2026-65789: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-65796: Windows iSCSI Target Service Remote Code Execution Vulnerability
securityFixes CVE-2026-66802: Windows Device Health Attestation (DHA) Remote Code Execution Vulnerability
securityFixes CVE-2026-71331: Windows Device Health Attestation (DHA) Remote Code Execution Vulnerability
securityFixes CVE-2026-62890: Windows GDI+ Elevation of Privilege Vulnerability
securityFixes CVE-2026-66799: Windows Key Guard Elevation of Privilege Vulnerability
securitySecurity update: includes the August 2026 Security Updates
feature[Secure Boot] This update includes additional high confidence device targeting data, increasing coverage of devices eligible to automatically receive new Secure Boot certificates. Certificate deployment via Windows updates continues across supported PCs and non-managed business devices in the…
securityFixes CVE-2026-56155: Active Directory Federation Services Elevation of Privilege Vulnerability
securityFixes CVE-2026-57092: Microsoft Windows VMSwitch Elevation of Privilege Vulnerability
securityFixes CVE-2026-50518: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-56159: DHCP Server Service Remote Code Execution Vulnerability
securityFixes CVE-2026-56188: Windows Server Network driver Remote Code Execution Vulnerability
securityFixes CVE-2026-50380: Windows GDI+ Remote Code Execution Vulnerability
securityFixes CVE-2026-48564: DHCP Server Service Remote Code Execution Vulnerability
securityFixes CVE-2026-50370: DHCP Server Service Remote Code Execution Vulnerability
securityFixes CVE-2026-50382: DirectX Graphics Kernel Remote Code Execution Vulnerability
securityFixes CVE-2026-50444: Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability
securityFixes CVE-2026-50474: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-54121: Active Directory Certificate Services Elevation of Privilege Vulnerability
securityFixes CVE-2026-54982: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
securityFixes CVE-2026-54999: Windows TCP/IP Remote Code Execution Vulnerability
securityFixes CVE-2026-57087: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-57090: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-57094: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-58608: Windows Print Spooler Remote Code Execution Vulnerability
securityFixes CVE-2026-54128: Windows DHCP Client Remote Code Execution Vulnerability
securityFixes CVE-2026-54992: Microsoft Message Queuing Queue Manager Remote Code Execution Vulnerability
securityFixes CVE-2026-50680: Windows Hyper-V Elevation of Privilege Vulnerability
securityFixes CVE-2026-49164: Windows Active Directory Domain Services Remote Code Execution Vulnerability
securityFixes CVE-2026-50694: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability
securityFixes CVE-2026-54995: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
securityFixes CVE-2026-42982: Windows Secure Kernel Mode Elevation of Privilege Vulnerability
securityFixes CVE-2026-49796: Windows GDI+ Remote Code Execution Vulnerability
securityFixes CVE-2026-50655: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-56189: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-54127: Windows Hyper-V Elevation of Privilege Vulnerability
securityFixes CVE-2026-44815: DHCP Client Service Remote Code Execution Vulnerability
securityFixes CVE-2026-45657: Windows Kernel Remote Code Execution Vulnerability
securityFixes CVE-2026-47291: HTTP.sys Remote Code Execution Vulnerability
securityFixes CVE-2026-42985: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-45648: Windows Active Directory Domain Services Remote Code Execution Vulnerability
securityFixes CVE-2026-47289: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-44810: Microsoft Cryptographic Services Elevation of Privilege Vulnerability
securityFixes CVE-2026-45607: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-45641: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-47652: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-42987: Windows Deployment Services (WDS) Remote Code Execution
securityFixes CVE-2026-33828: Windows Device Health Attestation (DHA) Elevation of Privilege Vulnerability
securityFixes CVE-2026-44803: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-44812: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-48574: Windows Media Remote Code Execution Vulnerability
securityFixes CVE-2026-42992: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-44799: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-44801: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-47654: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-48563: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-47288: Windows Kerberos Key Distribution Center (KDC) Remote Code Execution
securityFixes CVE-2026-41089: Windows Netlogon Remote Code Execution Vulnerability
securityFixes CVE-2026-40402: Windows Hyper-V Elevation of Privilege Vulnerability
securityFixes CVE-2026-40403: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-35421: Windows GDI Remote Code Execution Vulnerability
securityFixes CVE-2026-32161: Windows Native WiFi Miniport Driver Remote Code Execution Vulnerability
security[Domain controllers (known issue)] Fixed: After installing the April 14, 2026, (KB5082142) Windows security update and restarting, domain controllers with multi-domain forests that use Privileged Access Management (PAM), might experience startup issues. In some cases, Local Security Authority…
securitySecurity update: includes the April 2026 Security Updates
other[Connectivity] This update improves the reliability of audio features in Windows, helping reduce system unresponsiveness related to sound or audio activity.
other[Kernel] This update improves system stability during large file operations. Users should experience fewer unexpected interruptions while working with or transferring large files.
security[Kerberos protocol] This update changes the default DefaultDomainSupportedEncTypes value for Kerberos Key Distribution Center (KDC) operations to leverage AES-SHA1 for accounts that do not have an explicit msds-SupportedEncryptionTypes Active Directory attribute defined. For more information see,…
other[Networking] This update improves reliability when Windows uses SMB compression over QUIC. After you install this update, SMB compression requests over QUIC complete more consistently, reducing the likelihood of timeouts and supporting smoother, more dependable performance.
security[Remote Desktop] This update improves protection against phishing attacks that use Remote Desktop (.rdp) files. When you open an .rdp file, Remote Desktop shows all requested connection settings before it connects, with each setting turned off by default. A one-time security warning also appears…
featureWith this update, Windows quality updates include additional high confidence device targeting data, increasing coverage of devices eligible to automatically receive new Secure Boot certificates. Devices receive the new certificates only after demonstrating sufficient successful update signals,…
fixThis update addresses an issue where the device might enter BitLocker Recovery after the Secure Boot updates.
feature[Texts and Fonts] This update improves Windows fonts by adding the new Saudi Riyal currency symbol. This change helps keep text clear, accurate, and visually consistent across your Windows apps and experiences.
security[Vulnerable driver blocklist] This update introduces a security hardening change that adds known vulnerable kernel drivers to the Microsoft vulnerable driver blocklist. Backup applications that rely on blocked drivers might experience failures when attempting to mount or manage disk images. These…
security[Windows Deployment Services (WDS)] This update disables the “Hands-Free Deployment” feature in WDS by default and is no longer a supported feature. For more information about this change, see Windows Deployment Services (WDS) Hands-Free Deployment Hardening Guidance related to CVE-2026-0386.
securitySecurity update: includes the March 2026 Security Updates
feature[Secure Boot] With this update, Windows quality updates include additional high confidence device targeting data, increasing coverage of devices eligible to automatically receive new Secure Boot certificates. This targeting is based primarily on client device diagnostic data; due to limited data,…
feature[Windows System Image Manager] Improved: This update improves the reliability of choosing trusted catalog files. It adds a warning dialog that helps you confirm that the file you select comes from a trusted source.
fix[File Explorer] Fixed: This update addresses an issue where folder renaming with desktop.ini files in File Explorer isn't work correctly. The LocalizedResourceName setting is ignored, so custom folder names don't appear.
other[Fonts & Display] Updates the Chinese fonts to support the GB18030‑2022A standard for character coverage and display.
security[Graphics] Fixed: This update addresses an issue where certain GPU configurations might recently have experienced a system error related to dxgmms2.sys, resulting in the KERNEL_SECURITY_CHECK_FAILURE error.
security[OS Security (known issue)] Fixed: After installing the Windows security update released on or after January 13, 2026, some PCs which run Virtual Secure Mode (VSM) are unable to shut down or enter hibernation. Instead, the device restarts.
feature[Networking]New! Windows Server now supports random shuffling of resource records in DNS Server responses. This helps reduce scenarios where a single resource record becomes overloaded because it appears first in the returned list. To enable, create a DWORD registry key named “RandomShuffle” at:…
fix[File System] Fixed: After installing the Windows update released on and after January 13, 2026, some applications became unresponsive or encountered unexpected errors when opening files from or saving files to cloud-based storage, such as OneDrive or Dropbox. In certain Outlook configurations…
security[Remote Desktop] Fixed: After installing the January 2026 Windows security update (KB5073457), some users experienced sign-in failures during Remote Desktop connections. This issue affected authentication steps for different Remote Desktop applications on Windows such as the Windows App.
other[Compatibility] This update removes the following modem drivers: agrsm64.sys (x64), agrsm.sys (x86), smserl64.sys (x64) and smserial.sys (x86). Modem hardware dependent on these specific drivers will no longer work in Windows.
security[Credentials autofill] This update introduces a security hardening behavior restricting certain applications to autofill credentials during remote support sessions or automated authentication workflows. With this change, credential dialogs do not respond to virtual keyboard input from remote…
fix[Remote Desktop] Fixed: This update addresses an issue that causes SearchIndexer (the Windows service that indexes files for search) to stop responding on Citrix hosts, which might prevent users from starting remote sessions.
feature[Windows Deployment Services (WDS] This update introduces a change in behavior in which WDS will stop supporting hands-free deployment functionality by default. Detailed guidance for IT administrators is available in Windows Deployment Services (WDS) Hands‑Free Deployment Hardening Guidance.
security[WinSqlite3.dll] Fixed: The Windows core component, WinSqlite3.dll, has been updated. Previously, some security software might have detected this component as vulnerable. Note WinSqlite3.dll is a separate component from sqlite3.dll, which is found in application-specific directories and is not a…
security[PowerShell 5.1] Invoke-WebRequest now includes a confirmation prompt with a security warning of script execution risk. You can choose to continue or cancel the request. For additional details, see CVE-2025-54100 and KB5074596: PowerShell 5.1: Preventing script execution from web content.
security[App compatibility (known issue)] Fixed: This update addresses an issue that created unexpected User Account Control (UAC) prompts for some apps, including Autodesk AutoCAD. For more information, see Unexpected UAC prompts when running MSI repair operations after installing the August 2025 Windows…
security[Security] Fixed: This update addresses an issue that affects Windows Server domain controllers using Microsoft Defender for Endpoint. After domain controller promotion, changes to registry permissions disrupted cloud-based communication.
fix[Networking] Fixed: This update fixes an issue in the HTTP.sys request parser, a Windows component that reads and processes HTTP requests. The parser allowed a single line break within HTTP/1.1 chunk extensions, where the RFC 9112 standard requires a carriage return and line feed (CRLF) sequence…
security[Windows Server Update Services (WSUS)] Fixed: This update addresses a remote code execution (RCE) vulnerability that was identified in WSUS reporting web services. For more information about the security fix, see CVE-2025-59287.
fixFixed: An issue where some characters didn’t display correctly when using the Chinese Input Method Editor (IME).
fixFixed: This update addresses an issue where certain Chinese characters appeared as empty boxes in some text fields, such as those used in Connection Manager Administration Kit, when a character limit was set.
fix[Networking (known issue)] Fixed: This update addresses an issue where you might not be able to connect to shared files and folders if you're using the Server Message Block (SMB) v1 protocol on NetBIOS over TCP/IP NetBIOS (NetBT). This can happen after installing update KB5065432.
fix[PowerShell] Fixed: This update addresses an issue that affects PowerShell Remoting and Windows Remote Management (WinRM), where commands might time out after 10 minutes.
security[Stability issue] Fixed: This update addresses an issue observed in rare cases after installing the May 2025 security update and subsequent updates causing devices to experience stability issues. Some devices became unresponsive and stopped responding in specific scenarios.
fix[System services and reliability] Fixed: Addresses an issue that caused McpManagement service to appear without a description on Windows.
other[Compatibility] This update removes the ltmdm64.sys driver. Fax modem hardware dependent on this specific driver will no longer work in Windows.
security[Cryptography] This update enforces a security hardening improvement by requiring use of Key Storage Provider (KSP) instead of Cryptographic Service Provider {CSP) for RSA-based smart card certificates. If you experience problems with smart card authentication as a result of this design change,…
security[File Explorer] After installing this update, File Explorer automatically disables the preview feature for files downloaded from the internet. This change is designed to enhance security by preventing a vulnerability when users preview potentially unsafe files. For details, including steps to…
security[App compatibility (known issue)] Fixed: Addresses an issue that caused non-admin users to receive unexpected User Account Control (UAC) prompts when MSI installers perform certain custom actions. These actions might include configuration or repair operations in the foreground or background,…
security[File server]⁠ This update enabled auditing SMB client compatibility for SMB Server signing as well as SMB Server EPA. This allows customers to assess their environment and identify any potential device or software incompatibility issues before deploying the hardening measures that are already…
fix[Input] Fixed: This update addresses an issue with the Chinese (Simplified) Input Method Editor (IME) where some extended characters appeared as empty boxes.
fix[Performance]⁠ Fixed: This update addresses an issue where a single, oversized Certificate Revocation List (CRL) file slows down system performance. To improve speed and privacy, the system now plans to use smaller, partitioned CRLs.
fix[Input (know issue)] Fixed: An issue when using the Microsoft Changjie IME (input method editor) for Traditional Chinese might cause problems such as not being able to form or select words, unresponsive spacebar or blank key, incorrect word output, or a broken candidate window display. This can…
securitySecurity update: includes the July 2025 Security Updates
fix[DHCP Server (known issue] Fixed: An issue in which the DHCP Server service might intermittently stop responding and affects IP renewal for clients.
fix[Language and character support] Fixed: An issue that affected some Chinese characters and experienced compliance issue with GB18030. These characters didn’t display correctly or weren’t accepted when using extended Unicode. A modern ICU-based solution now properly supports GB18030-2022…
fix[Performance]⁠ Fixed: This update addresses an issue that prevented the complete removal of unused language packs and Feature on Demand packages, which previously led to unnecessary storage use and longer Windows Update installation times.
security[Microsoft RPC Netlogon protocol] This update includes a security hardening change to the Microsoft RPC Netlogon protocol. This change improves security by tightening access checks for a set of remote procedure call (RPC) requests. After this update is installed, Active Directory domain…
fixFixed: An issue where some characters appear wider than standard characters, and the sample paragraph in the font preview section doesn’t display correctly.
fixFixed: This update addresses an issue where some GB18030-2022 characters don’t display correctly within the extended Chinese character set⁠.⁠
fix[Memory leak] Fixed: This update addresses an issue in the Input Service that causes increased memory usage, potentially impacting performance in multi-user, multilingual, and remote desktop environments.
fix[Settings] Fixed: This update addresses an issue in the Settings app where turning on the "Prohibit Access to Control Panel and PC Settings" policy could make the system repeatedly restart and automatically enter repair mode.
fix[Windows Hello] Fixed: This update addresses an issue that prevents users from signing in with self-signed certificates when using Windows Hello for Business with the Key Trust model.
fix[Hyper-V Platform] Fixed: An issue in the direct send path for a guest physical address (GPA) where confidential virtual machines running on Hyper-V with Windows Server 2022 might intermittently stop responding or restart unexpectedly, affecting service availability and requiring manual…
fix[Desktop Windows Manager (DVM)] Fixed: This update addresses an issue that affects the DWM, where it stops responding due to an access error in dwmredir.dll during remote session while connection or disconnection, resulting in a black or grey screen.
fix[Graphics kernel] Fixed: This update addresses an issue that occurs when starting a new console session after closing the previous one, and the new session doesn't start successfully.
other[Secure Boot Advanced Targeting (SBAT) and Linux Extensible Firmware Interface (EFI)]⁠ This update applies improvements to SBAT for the detection of Linux systems
security[Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
securityIt addresses a known issue where Audit Logon/Logoff events in the local policy of the Active Directory Group Policy might not show as enabled on the device even if they are enabled and working as expected. This can be observed in the Local Group Policy Editor or Local Security Policy, where local…
securitySecurity update: includes the April 2025 Security Updates
other[Daylight Saving Time (DST)] Update for the Aysen region in Chile to support the government DST change order in 2025. For more info about DST changes, see the Daylight Saving Time & Time Zone Blog.
security[OS Security] After installing this update or a later Windows update, a new %systemdrive%\inetpub folder will be created on your device. This folder should not be deleted regardless of whether Internet Information Services (IIS) is enabled on the target device. This behavior is part of changes…
security[Kerberos Authentication] Change of behavior: Adds protections for a vulnerability which occurs when a certificate authority is part of the Windows root store but not the NTAuth store. This change enabled by default might cause Event ID: 45 events to be logged on the domain controller. For more…
other[Daylight saving time (DST)] This update supports (DST) changes in Paraguay.
fix[Open Secure Shell (OpenSSH) (known issue)] Fixed: The service fails to start, which stops SSH connections. There is no detailed logging, and you must run the sshd.exe process manually.
feature[GB18030-2022] This update adds support for this amendment.
fix[Azure Virtual Network] Fixed: You can turn off the VNET metering feature with the following registry key. Registry key: HKLM\CurrentControlSet\Services\NcHostAgent\Parameters\Plugins\Vnet Registry key: MeteringDisabled (DWORD type) Data to be set: 1
securitySecurity update: includes the February 2025 Security Updates
fix[Task Manager] Fixed: The CPU index number might be wrong when you set process affinity. This occurs on servers that have two or more non-uniform memory access (NUMA) nodes.
feature[GB18030-2022] This update adds support for this amendment.
fix[Memory leak] Fixed: Leaks occur when predictive input ideas show.
fix[Device Health Attestation] Fixed: When you upgrade from Windows Server 2016, a crucial item is not there. Because of this, service fails.
security[Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
fix[Directory enumeration] Fixed: This might fail if a directory has symbolic links that have long target names.
fix[Bind Filter Driver] Fixed: Your system might stop responding when it accesses symbolic links.
fix[Digital/Analog converter (DAC) (known issue)] Fixed: You might experience issues with USB audio devices. This is more likely when you use a DAC audio driver based on USB 1.0. USB audio devices might stop working, which stops playback.
security[USB cameras] Fixed: Your device does not recognize the camera is on. This issue occurs after you install the January 2025 security update.
fix[USB audio device drivers] Fixed: The code 10 error message, “This device cannot start” appears. This occurs when you connect to certain external audio management devices.
fix[Non-uniform memory access (NUMA) nodes] Fixed: Some servers that have two or more NUMA nodes fail to start up.
securitySecurity update: includes the January 2025 Security Updates
security[Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
securitySecurity update: includes the December 2024 Security Updates
fix[Motherboard replacement] Fixed: Windows does not activate after you replace a motherboard.
fix[FrameShutdownDelay] Fixed: The browser ignores its value in the “HKLM\SOFTWARE\Microsoft\Internet Explorer\Main” registry key.
fix[vmswitch] Fixed: A vmswitch triggers a stop error. This occurs when you use Load Balancing and Failover (LBFO) teaming with two virtual switches on a virtual machine (VM). In this case, one virtual switch uses single root Input/Output virtualization (SR-IOV).
fix[Collector sets] Fixed: They do not close properly when an exception occurs during startup or while the set is active. Because of this, the command to stop a collector set stops responding.
feature[Product activation phone numbers] This adds new phone numbers for several regions.
security[Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
fix[Windows Backup] Fixed: Backup sometimes fails. This occurs when a device has an Extensible Firmware Interface (EFI) system partition (ESP).
fix[Cace disk] Fixed: The "Starting Maintenance mode" exception flag appears after you remove a cache disk.
other[Remote Desktop Connection Broker in high availability mode] This update turns on Kerberos authentication for smart cards.
securitySecurity update: includes the October 2024 Security Updates
feature[Software Defined Networking (SDN)]New! The SDN API now performs better for large-scale deployments. Watch for load balancer connectivity issues after you install this update. If you have any, move the SDNAPI microservice to another node. An SDN admin can move the service. To do that, use the…
fix[MSIX applications] Fixed: When you install them from an HTTPS URI, they fail to open. This issue occurs when the download of the app is not complete. This damages the package.
fix[Task Manager] Fixed: It stops responding when you select the “Performance” tab.
fix[Direct Composition batched presentations] Fixed: A brief flash of triangles or boxes show on the screen. This issue affects browsers, like Microsoft Edge, and other apps.
fix[Input Method Editor (IME)] Fixed: When a combo box has input focus, a memory leak might occur when you close that window.
fix[AppLocker] Fixed: The rule collection enforcement mode is not overwritten when rules merge with a collection that has no rules. This occurs when the enforcement mode is set to “Not Configured.”
fix[Remote Desktop (known issue)] Fixed: Windows Servers might disrupt Remote Desktop connections across your company. This issue might occur if you use a legacy protocol in the Remote Desktop Gateway. An example protocol is Remote Procedure Call over HTTP. If the issue occurs, it is sporadic, like…
fix[Containers (known issue)] Fixed: Container networking on Kubernetes might not work as you expect. Containers fail to reach external networks or communicate between pods. It might affect you when you use Calico to set up container networking on development or production instances. If affected,…
securitySecurity update: includes the September 2024 Security Updates
feature[Windows Installer] When it repairs an application, the User Account Control (UAC) does not prompt for your credentials. After you install this update, the UAC will prompt for them. Because of this, you must update your automation scripts. Application owners must add the Shield icon. It indicates…
other[IE mode] Pop-up windows open in the background instead of in the foreground.
other[AppContainer] Printers do not work as you expect when you use them in a restricted setting, like AppContainer.
other[BitLocker] You might not be able to decrypt a BitLocker data drive. This occurs when you move that drive from a newer version of Windows to an older version.
security[Dual boot of Windows and Linux (known issue)] Linux might fail to start up when you turn on dual-boot setup for Windows and Linux on your device. The error message is, “Verifying shim SBAT data failed: Security Policy Violation. Something has gone seriously wrong: SBAT self-check failed: Security…
securitySecurity update: includes the August 2024 Security Updates
other[Remote Desktop Session Host (RDSH)] Users cannot connect to the RDSH, and the host loses data. This occurs because win32kbase.sys stops responding.
other[Windows Defender Application Control (WDAC)] A memory leak occurs that might exhaust system memory as time goes by. This issue occurs when you provision a device.
other[Protected Process Light (PPL) protections] You can bypass them.
security[Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
other[Microsoft 365 Defender (known issue] The Network Detection and Response (NDR) service might encounter issues. This interrupts network data reporting. If this issue affects you, a message appears on the service health page of the Microsoft 365 admin center. You can also view the status of NDR on…
security[BitLocker (known issue)] A BitLocker recovery screen shows when you start up your device. This occurs after you install the July 9, 2024, update. This issue is more likely to occur if device encryption is on. Go to Settings > Privacy & Security > Device encryption. To unlock your drive, Windows…
security[Lock screen] This update addresses CVE-2024-38143. Because of this, the “Use my Windows user account” checkbox is not available on the lock screen to connect to Wi-Fi.
other[NetJoinLegacyAccountReuse] This update removes this registry key. For more information refer to KB5020276—Netjoin: Domain join hardening changes.
security[Secure Boot Advanced Targeting (SBAT) and Linux Extensible Firmware Interface (EFI)] This update applies SBAT to systems that run Windows. This stops vulnerable Linux EFI (Shim bootloaders) from running. This SBAT update will not apply to systems that dual-boot Windows and Linux. After the SBAT…
security[Domain Name System (DNS)] This update hardens DNS server security to address CVE-2024-37968. If the configurations of your domains are not up to date, you might get the SERVFAIL error or time out.
deprecated[Line Printer Daemon (LPD) protocol] Using this deprecated protocol to print might not work as you expect or fail. This issue occurs after you install the July 9, 2024, and later updates. Note When it is no longer available, clients, like UNIX, that use it will not connect to a server to print.…
securitySecurity update: includes the July 2024 Security Updates
other[Absent apps and features] Some apps and features are absent after you upgrade to Windows 11.
feature[Double-wide character set range] This update adds new ranges to the double-wide character set range. This ensures that the PowerShell console identifies and handles them the right way.
other[Input Method Editor (IME)] The candidate list fails to show or shows in the wrong position.
other[Windows Presentation Foundation (WPF)] A malformed Human Interface Device (HID) descriptor causes WPF to stop responding.
other[Remote Desktop Session Host (RDSH)] Users cannot connect to the RDSH. This occurs because dwm.exe stops responding.
other[Remote Desktop MultiPoint Server] A race condition causes the service to stop responding.
other[Windows Local Administrator Password Solution (LAPS)] Its Post Authentication Actions (PAA) do not occur at the end of the grace period. Instead, they occur at restart.
other[Remote Authentication Dial-In User Service (RADIUS) protocol] This issue is related to MD5 collisions. For more information, see KB5040268.
security[BitLocker] This update adds PCR 4 to PCR 7 and 11 for the default Secure Boot validation profile. See CVE-2024-38058 for more information.
featureThis update changes how IT administrators should set up remote paths for file shortcut icons (.LNK files). The set up now requires that you configure the policy “Allow the use of remote paths in file shortcut icons”. If you don’t configure this policy, icons on the Start menu, Windows desktop and…
otherThis update addresses a known issue that affects the BCryptSignHash API. Because of this issue, the API returns “STATUS_INVALID_PARAMETER.” This occurs when callers use NULL padding input parameters for RSA signatures. This issue is more likely to occur when Customer-Managed Key (CMK) are in use,…
securitySecurity update: includes the June 2024 Security Updates
featureNew! This update affects Server Message Block (SMB) over Quick UDP Internet Connections (QUIC). It turns on the SMB over QUIC client certificate authentication feature. Admins can use it to restrict which clients can access SMB over QUIC servers. To learn more, see Configure SMB over QUIC client…
featureNew! The LCU will no longer have the reverse differentials. The client will generate the playback delta. This change will help to reduce the LCU package size by about 20%. This change also offers a few advantages. It:
otherImproves performance on slow connections.
otherThis update affects the version of curl.exe that is in Windows. The version number is now 8.7.1.
fixThis update addresses an issue that affects Outlook and OneNote. Their search function stops working. This occurs when you use Azure Virtual Desktop (AVD).
securityThis update addresses an issue that affects lsass.exe. It stops responding. This occurs after you install the April 2024 security updates on Windows servers.
fixThis update addresses an issue that affects Windows Hello for Business. You cannot use it to authenticate to Entra ID on certain apps. This occurs when you use Web Access Management (WAM).
fixThis update addresses an issue that affects a Microsoft Entra ID account. Devices cannot authenticate a second one. This occurs after you install the Windows update, dated November 13, 2023.
fixThis update addresses an issue that affects Microsoft Edge. The UI is wrong for the Internet Options Data Settings.
fixThis update addresses an issue that affects Storage Spaces Direct (S2D) and Remote Direct Memory Access (RDMA). When you use them with SMBdirect in your networks, the networks fail. You also lose the ability to manage clusters.
fixThis update addresses an issue that affects Containers. They do not move past the “ContainerCreating” status.
fixThis update addresses an issue that affects Windows Defender Application Control (WDAC). It prevents a stop error that occurs when you apply more than 32 policies.
fixThis update addresses an issue that might stop your system from resuming from hibernate. This occurs after you turn on BitLocker.
fixThis update addresses an issue that affects Windows Defender Application Control (WDAC). The issue copies unsigned WDAC policies to the Extensible Firmware Interface (EFI) disk partition. It is reserved for signed policies.
fixThis update addresses an issue that affects Enhanced Fast Reconnect. It fails. This occurs when you use it with third-party remote desktop protocol (RDP) providers.
fixThis update addresses an issue that affects the Remote Desktop Session Host (RD Session Host). A deadlock occurs when a large number of users sign in.
fixThis update addresses an issue that affects dsamain.exe. It stops responding. This occurs when the Knowledge Consistency Checker (KCC) runs evaluations.
securityThis update addresses an issue that affects lsass.exe. It leaks memory. This occurs during a Local Security Authority (Domain Policy) Remote Protocol (LSARPC) call.
fixThis update addresses an issue that affects the kernel stack. It might overflow. Because of this, VMs might shut down prematurely.
featureStarting in this update, File Explorer adds the Mark of the Web (MoTW) tag to files and folders that come from untrusted locations. When MapUrlToZone classifies a file as “Internet,” that file also gets this tag. Because of this change, the “LastWriteTime” time stamp is updated. This might affect…
securitySecurity update: includes the May 2024 Security Updates
otherThis update addresses a known issue that might affect domain controllers (DC). NTLM authentication traffic might increase.
fixThis update addresses an issue that affects IE mode. A webpage stops working as expected when there is an open modal dialog.
fixThis update addresses an issue in that affects IE mode. It stops responding. This occurs if you press the left arrow key when an empty text box has focus and caret browsing is on.
fixThis update addresses an issue that affects Wi-Fi Protected Access 3 (WPA3) in the Group Policy editor. HTML preview rendering fails.
fixThis update addresses an issue that affects a server after you remove it from a domain. The Get-LocalGroupMember cmdlet returns an exception. This occurs if the local groups contain domain members.
otherThis update affects next secure record 3 (NSEC3) validation in a recursive resolver. Its limit is now 1,000 computations. One computation is equal to the validation of one label with one iteration. DNS Server Administrators can change the default number of computations. To do this, use the…
fixThis update addresses an issue that affects a network. An error occurs when credentials expire.
fixThis update addresses an issue that occurs when you use LoadImage() to load a top-down bitmap. If the bitmap has a negative height, the image does not load, and the function returns NULL.
securityThis update includes quarterly changes to the Windows Kernel Vulnerable Driver Blocklist file, DriverSiPolicy.p7b. It adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
fixThis update addresses an issue that affects a workstation that is not in a domain. When you connect from it to a share and use an IPV6 address, you get the error, “ERROR_BAD_NET_NAME.”
otherThis update addresses a known issue that might cause your VPN connection to fail. This occurs after you install the update dated April 9, 2024, or later.
fixThis update addresses an issue that might affect Virtual Secure Mode (VSM) scenarios. They might fail. These scenarios include VPN, Windows Hello, Credential Guard, and Key Guard.
securityThis update addresses an issue that affects Group Policy Folder Redirection in a multi-forest deployment. The issue stops you from choosing a group account from the target domain. Because of this, you cannot apply advanced folder redirection settings to that domain. This issue occurs when the…
fixThis update affects Windows Defender Application Control (WDAC). The update addresses an issue that might cause some apps to fail when you apply WDAC Application ID policies.
securitySecurity update: includes the April 2024 Security Updates
featureNew! This update affects Windows Hello for Business. IT admins can now use mobile device management (MDM) to turn off the prompt that appears when users sign in to an Entra-joined machine. To do this, they can turn on the “DisablePostLogonProvisioning” policy setting. After a user signs in,…
otherThis update supports daylight saving time (DST) changes in Palestine. To learn more, see Interim guidance for DST changes announced by Palestinian Authority for 2024, 2025.
otherThis update supports DST changes in Kazakhstan. To learn more, see Interim guidance for Kazakhstan time zone changes 2024.
otherThis update supports DST changes in Samoa. To learn more, see Interim guidance for Samoa DST changes 2021.
fixThis update addresses an issue that causes high CPU usage. This occurs after you open the Snipping Tool.
fixThis update addresses an issue that affects a network resource. You cannot access it from a Remote Desktop session. This occurs when you turn on the Remote Credential Guard feature and the client is Windows 11, version 22H2 or higher.
fixThis update addresses an issue that affects Microsoft Edge IE mode. When you open many tabs, it stops responding.
fixThis update addresses an issue that affects DNS servers. They receive Event 4016 for a timeout of the Lightweight Directory Access Protocol (LDAP). This occurs when they perform DNS registrations. Name registrations fail with Active Directory Domain Services (AD DS). The issue remains until you…
fixThis update addresses an issue that affects workload virtual machines (VM). They lose their connection to the network in production environments.
fixThis update addresses an issue that affects mouse cursor movements. They lag in some screen capture scenarios, especially when you use the Remote Desktop Protocol (RDP).
fixThis update addresses an issue that affects the Group Policy service. It fails after you use LGPO.exe to apply an audit policy to the system.
fixThis update addresses an issue that affects the display of a smart card icon. It does not appear when you sign in. This occurs when there are multiple certificates on the smart card.
fixThis update addresses an issue that causes your device to shut down after 60 seconds. This occurs when you use a smart card to authenticate on a remote system.
fixThis update addresses an issue that affects temporary group membership. Users whose memberships have expired appear when you search for them in LDAP. This occurs even though Active Directory has removed them.
fixThis update addresses an issue that affects a root directory. When you open an alternate data stream and delete something, you get an error.
fixThis update addresses an issue that affects the Resilient File System (ReFS). A stop error prevents the OS from starting up correctly.
fixThis update addresses an issue that occurs when you create a file that spans more than one directory. When you rename the original directory, you get an error.
fixThis update addresses an issue that affects fastfat.sys. It stops responding. This occurs because of a race condition.
fixThis update addresses an issue that affects Name Service Provider Interface (NSPI) queries. They might fail. If they do, lsass.exe stops responding on a domain controller.
securityThis update addresses a known issue that affects the Local Security Authority Subsystem Service (LSASS). It might leak memory on domain controllers (DCs). This issue occurs after you install KB5035857 (March 12, 2024). The leak occurs when on-premises and cloud-based Active Directory DCs process…
securitySecurity update: includes the March 2024 Security Updates
securityThe update affects Active Directory domains that host mobile device management (MDM) providers. They can transition from “Compatibility mode” to the strong certificate mapping “Enforcement mode.” To do this, they can allow an Active Directory Key Distribution Center (KDC) to read user security…
otherKB5014754: Certificate-based authentication changes on Windows domain controllers
otherPreview of SAN URI for Certificate Strong Mapping for KB5014754
fixThis update addresses an issue that affects the touch keyboard. It might not show during out-of-box experience (OOBE).
fixThis update addresses an issue that makes the troubleshooting process fail. This occurs when you use the Get Help app.
fixThis update addresses an issue that affects Remote Desktop Web Authentication. You might not be able to connect to sovereign cloud endpoints.
otherThis update affects HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders. Your device can now set and maintain the correct default permissions.
otherThis update addresses a memory allocation issue in the Host Network Service (HNS). It causes high memory usage. It also affects service and pod deployment.
securitySecurity update: includes the February 2024 Security Updates
fixThis update addresses an issue that affects remote direct memory access (RDMA) performance counters. They do not return networking data on VMs in the right way.
fixThis update addresses an issue that affects fontdrvhost.exe. It stops responding when you use Compact Font Format version 2 (CFF2) fonts.
otherThis update addresses a memory leak in ctfmon.exe.
otherThis update addresses a memory leak in TextInputHost.exe.
fixThis update addresses an issue that affects protected content. It stops cross-process windows from being created. Because of this update, you can keep using out-of-process hosting for things like WebView2 under protected, top-level windows.
fixThis update addresses an issue that affects touchscreens. They do not work properly when you use more than one monitor.
fixThis update addresses an issue that affects Windows Defender Application Control (WDAC). Its “allow” policies might block some binaries from running.
featureThis update affects Unified Extensible Firmware Interface (UEFI) Secure Boot systems. It adds a renewed signing certificate to the Secure Boot DB variable. You can now opt for this change. For more details, see KB5036210.
fixThis update addresses an issue that affects the download of device metadata. Downloads from the Windows Metadata and Internet Services (WMIS) over HTTPS are now more secure.
securityThis update addresses an issue that affects the Local Security Authority Subsystem Service (LSASS). It might stop working. This occurs when you access the Active Directory database.
securityThis update includes quarterly changes to the Windows Kernel Vulnerable Driver Blocklist file, DriverSiPolicy.p7b. It adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
fixThis update addresses an issue that affects the Certificate Authority snap-in. You cannot select the "Delta CRL" option. This stops you from using the GUI to publish Delta CRLs.
fixThis update addresses an issue that affects a local account. You cannot sign in to an account that Windows LAPS manages. This occurs if you set the "Require Smart Card for Interactive Logon" policy.
fixThis update addresses an issue that affects Server Message Block (SMB) connections. They disconnect when all of the following are true:
otherYou change the client and server encryption cipher list from the default values.
otherThe client and server do not have any ciphers in common.
otherSMB encryption is not in use.
otherA multi-channel configuration, such as RDMA, is in place.
fixThe update addresses an issue that affects SMB over a Quick UDP Internet Connection (QUIC). It stops responding if port 445 is blocked.
otherThis update changes a setting in Active Directory Users & Computers. By default, the snap-in now uses a strong certificate mapping of X509IssuerSerialNumber. It does not use the weak mapping of x509IssuerSubject.
otherThis update addresses a known issue that affects chromium-based internet browsers, such as Microsoft Edge. They might not open correctly. They might also show a white screen and stop responding when you open them. Devices that have browser-specific Image File Execution Options (IFEO) might also…
securitySecurity update: includes the January 2024 Security Updates
fixThis update addresses an issue that affects Microsoft Intune. One of its new features does not work properly.
fixThis update addresses an issue that affects account lockout event 4625. The format of the event is wrong in the ForwardedEvents log. This occurs when an account name is in the user principal name (UPN) format.
fixThis update addresses an issue that affects hybrid joined devices. You cannot sign in to them if they are not connected to the internet. This occurs when you use a Windows Hello for Business PIN or biometric credentials. This issue applies to a cloud trust deployment.
fixThis update addresses an issue that affects the Trusted Sites Zone logon policy. You cannot manage it using mobile device management (MDM).
fixThis update addresses an issue that affects Microsoft Excel. It stops responding when you try to share a file as a PDF in Outlook.
fixThis update addresses an issue that affects the Server Manager pop-up text. It removes the words “Azure Automanage.”
fixThis update addresses an issue that affects XPath queries on FileHash and other binary fields. It stops them from matching values in event records.
fixThis update addresses an issue that affects certain network functions on VMs. Deployment of them fails.
fixThis update addresses an issue that affects the Network Controller. The issue makes you create more rules for outbound traffic so that return traffic is not blocked.
fixThis update addresses an issue that affects a WS_EX_LAYERED window. The window might render with the wrong dimensions or at the wrong position. This occurs when you scale the display screen.
fixThis update addresses an issue that affects printing to PDF metadata. It extracts the username that you sign in with and puts it into the author name metadata box. Instead, print to PDF should place your display name in that box.
fixThis update addresses an issue that affects disk partitions. Your system might stop responding. This occurs if you add space from a deleted partition to an existing BitLocker partition.
fixThis update addresses an issue that affects Windows Defender Application Control (WDAC). AppID Tagging policies might greatly increase how long it takes your device to start up.
fixThis update addresses an issue that causes your device to shut down after 60 seconds. This occurs when you use a smart card to authenticate on a remote system.
fixThis update addresses an issue that affects the display of a smart card icon. The icon does not appear when you sign in. This occurs when there are multiple certificates on the smart card.
fixThis update addresses an issue that affects Active Directory domain controllers. They report DS_BUSY errors when you create new users. This only occurs on primary domain controller emulators (PDCe).
fixThis update addresses an issue that affects the Windows Local Administrator Password Solution (Windows LAPS). The LAPS account does not work. This occurs if the password is older than the age that the maximum age device policy allows.
fixThis update addresses an issue that affects the Kerberos Key Distribution Center (KDC). It returns a KDC_ERR_S_PRINCIPAL_UNKNOWN error during trust referrals, which is wrong.
fixThis update addresses an issue that affects the msDS-KeyCredentialLink attribute. In some cases, it is updated when it should not be.
fixThis update addresses an issue that causes lsass.exe to stop responding. Because of this, a restart loop occurs.
fixThis update addresses an issue that affects the Key Distribution Service (KDS). It does not start in the time required if LDAP referrals are needed.
securitySecurity update: includes the December 2023 Security Updates
featureThis update affects the Netherlands time zone. It adds the recent man-made landmass outside of Rotterdam to the shape files.
otherThis update affects Microsoft Defender for Endpoint (MDE). It enables Conditional Access (CA) scenarios.
securitySecurity update: includes the November 2023 Security Updates
otherThis update supports daylight saving time (DST) changes in Syria. To learn more, see Interim guidance for Syria DST changes 2022.
fixThis update addresses an issue that affects UI Automation and caching mode.
otherThis update affects Windows Autopilot profiles. The process to download the Windows Autopilot policy is more resilient. This helps when a network connection might not be fully initialized. This update increases the retry attempts when you try to download the Windows Autopilot profile.
fixThis update addresses an issue that causes your device to restart when you do not expect it. This occurs after you restore a system.
otherThis update affects user mode printer drivers. They unload unexpectedly. This occurs when you print from multiple print queues to the same printer driver.
fixThis update addresses an issue that affects Xenon or Argon containers. They do not start.
otherThis update affects Windows Server: Azure Edition. It is easier to view attestation failure notifications.
fixThis update addresses an issue that affects an Application Virtualization (App-V) environment. Copy operations within it stop working. This occurs after you install the April 2023 update.
fixThis update addresses an issue that blocks external connections. This occurs when you set up a Kubernetes load balanced service and turn on session affinity.
fixThis update addresses an issue that affects NCryptGetProperty(). Calling it with NCRYPT_KEY_TYPE_PROPERTY returns 0x1 instead of 0x20. This occurs when the key is a machine key.
securityThis update includes quarterly changes to the Windows Kernel Vulnerable Driver Blocklist file, DriverSiPolicy.p7b. It adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
fixThis update addresses an issue that affects Windows LAPS. Its PasswordExpirationProtectionEnabled policy fails to turn on the setting.
fixThis update addresses an issue that affects the refsutil.exe inbox utility. Options, like salvage and leak, do not work well on Resilient File System (ReFS) volumes.
fixThis update addresses an issue that might affect a large reparse point. You might get a stop error when you use NTFS to access it. This issue occurs after a canceled FSCTL Set operation changes the reparse tag.
fixThis update addresses an issue that affects a machine that is used as a remote desktop session (RDS) host. An RDR_FILE_SYSTEM (0x27) stop error occurs. Because of this, everyone that uses RDS starts up from this machine.
otherThis update addresses a known issue that affects virtual machines (VMs) that run on VMware ESXi hosts. Windows Server 2022 might fail to start up. The affected VMs will receive an error with a blue screen and a stop code: PNP DETECTED FATAL ERROR.
fixThis update addresses an issue that affects a COM+ component. It might stop responding. This occurs because of a deadlock during COM+ Just-in-Time (JIT) activation. However, this part of this update is off by default for this version of Windows. If you have this issue, you must contact Microsoft…
securitySecurity update: includes the October 2023 Security Updates
featureNew! This update adds an Azure Arc Setup Optional Component. It includes a new Azure Arc system tray icon and a new Server Manager entry for Azure Arc Management. There is also a graphical installer for the Azure Connected Machine agent. Now, you can turn on Azure Arc using just a few clicks. You…
featureNew! This update completes the work to comply with the GB18030-2022 requirements. It removes and remaps characters for Microsoft Wubi input and Microsoft Pinyin U-mode input. You can no longer enter character codepoints that are not supported. All the required codepoints are up to date.
otherThis update addresses a race condition. This occur when codepages load during the early part of startup. This leads to stop error a 0x7e.
otherThis update changes the spelling of Ukraine's capital from Kiev to Kyiv.
otherThis update supports daylight saving time (DST) changes in Greenland.
fixThis update addresses an issue that affects scheduled tasks. Tasks that call the credential manager API might fail. This occurs if you select [Run only when user is logged on] and [Run with highest privileges].
securityThis update addresses an issue that affects Kerberos delegation. It might fail in the wrong way. The error code is 0xC000006E (STATUS_ACCOUNT_RESTRICTION). This issue might occur when you mark the intermediate service account as “This account is sensitive and cannot be delegated” in Active…
fixThis update addresses an issue that affects PCI devices. You might get an error when you turn on Kernel Direct Memory Access (DMA) protection.
otherThis update improves the efficiency and performance of the Recommended Troubleshooter.
otherThis update affects Windows Filtering Platform (WFP) connections. The redirect diagnostics for them has improved.
fixThis update addresses an issue that affects external binding. It fails. This occurs after you install Windows updates dated May 2023 or later. Because of this, there are issues that affect LDAP queries and authentication.
otherThis update affects Active Directory event ID 1644 processing. It now accepts events that are more than 64 KB in length. This change truncates Lightweight Directory Access Protocol (LDAP) queries that are in event 1644 to 20000 characters by default. You can configure the 20K value using the…
fixThis update addresses an issue that affects those who enable the “Smart Card is Required for Interactive Logon” account option. When RC4 is disabled, you cannot authenticate to Remote Desktop Services farms. The error message is, "An authentication error has occurred. The requested encryption type…
fixThis update addresses an issue that affects I/O over Server Message Block (SMB). It might fail when you use the LZ77+Huffman compression algorithm.
fixThis update addresses an issue that affects the Server Message Block (SMB) client. It does not reconnect all the persistent handles when the reauthentication of a session fails.
securityTo protect against CVE-2023-44487, you should install the latest Windows update. Based on your use case, you can also set the limit of the RST_STREAMS per minute using the new registry keys in this update. You can create the DWORD registry values in the table below under the following registry…
securitySecurity update: includes the September 2023 Security Updates
featureNew! This update affects firewall settings. You can now make changes that allow you to configure application group rules.
otherThis update supports daylight saving time (DST) changes in Israel.
fixThis update addresses an issue that affects Server Message Block (SMB). You cannot access the SMB shared folder. The errors are, “Not enough memory resources” or “Insufficient system resources.”
fixThe update addresses an issue that affects scheduled tasks. The tasks fail when they use stored local user account credentials. This occurs when you enable Credential Guard. The error message is "2147943726: ERROR_LOGON_FAILURE (The user name or password is incorrect).”
securityThis update addresses an issue that affects the Local Security Authority Subsystem Service (LSASS). It stops responding. This occurs when you use Azure Virtual Desktop (AVD).
fixThe update addresses an issue that affects those who use Windows Update for Business. After you are asked to change your password at sign in, the change operation fails. Then you cannot sign in. The error code is 0xc000006d.
securityThis update addresses an issue that affects the Local Security Authority Subsystem Service (LSASS) process. It might stop responding. Because of this, the machine restarts. The error is 0xc0000005 (STATUS_ACCESS_VIOLATION).
fixThis update addresses an issue that affects the Tab Window Manager. It stops responding when you use IE mode.
fixThis update addresses an issue that is related to changes in the forwarding of events.
fixThis update addresses an issue that affects the Group Policy Service. It will not wait for 30 seconds, which is the default wait time, for the network to be available. Because of this, policies are not correctly processed.
featureThis update adds a new API for D3D12 Independent Devices. You can use it to create multiple D3D12 devices on the same adapter. To learn more, see D3D12 Independent Devices.
fixThis update addresses an issue that affects virtual machines (VM). Creating new VMs fails for Azure Stack Hub customers. This occurs when you add a new node to a cluster.
fixThis update addresses an issue that affects certain VMs. Deploying them fails. This occurs because certain VM images do not respond to Address Resolution Protocol (ARP) requests if the source is outside of the local network.
fixThis update addresses an issue that affects Azure Stack HCI customers. Your attempts to create VMs fail. This occurs when you delete and recreate server Representational State Transfer (REST) resources for the Network Controller.
fixThis update addresses an issue that affects print jobs that are sent to a virtual print queue. They fail without an error.
otherThis update affects Windows Defender Application Control (WDAC). Its policy to block software based on a hash might not stop the software from running.
otherThis update affects unsigned WDAC policies. They are copied to the Extensible Firmware Interface (EFI) disk partition. It is reserved for signed policies.
fixThis update addresses an issue that affects the Remote Desktop (RD) Web Role. If you enable that role, it fails when you upgrade RD deployments more than once.
fixThis update addresses an issue that affects Narrator. Its focus does not change when the keyboard focus changes. Because of this, Narrator reads the wrong label within the dialog that appears when you sign in.
fixThis update addresses an issue that affects the Microsoft Distributed Transaction Coordinator (DTC). It has a handle leak. Because of this, the system runs out of memory.
fixThis update addresses an issue that affects the Resultant Set of Policy (RSOP). The Windows LAPS "BackupDirectory" policy setting was not being reported. This occurs when the setting is set to 1, which is “Back up to AAD.”
fixThis update addresses an issue that affects authentication. Using a smart card to join or rejoin a computer to an Active Directory domain might fail. This occurs after you install Windows updates dated October 2022 or later. For more details, see KB5020276.
fixThis update addresses an issue that affects DPM 2019 and DPM 2022. When you try to install them, it fails. This occurs because the Resilient File System (ReFS) stops responding.
otherThis update turns on the Remote Desktop IP Virtualization feature. It simulates a single-user desktop. To do this, it supports per-session and per-program Remote Desktop IP Virtualization for Winsock applications. To learn more, see Remote Desktop IP Virtualization in Windows Server.
securitySecurity update: includes the August 2023 Security Updates
fixThis update addresses an issue that affects Microsoft Teams. It fails to send you notifications under certain conditions.
fixThis update addresses an issue that affects the Windows Management Instrumentation (WMI) repository. This causes an installation error. The issue occurs when a device does not shut down properly.
fixThis update addresses an issue that affects Event Forwarding Subscriptions. When you add an Event Channel to the subscription, it forwards events you do not need.
fixThis update addresses an issue that affects apps that use DirectX on older Intel graphics drivers. You might receive an error from apphelp.dll.
otherThis update enhances hinting for some of the letters of the Verdana Pro font family.
fixThis update addresses an issue that might affect your computer when you are playing a game. Timeout Detection and Recovery (TDR) errors might occur.
fixThis update addresses an issue that affects the software-defined networking (SDN) firewall In Memory Object Store DB. Its migration fails.
featureThis update affects text edit controls in XAML. You cannot edit the controls again after they become read only. This occurs when you use the new Microsoft Input Method Editor for Japanese, Chinese, and Korean.
fixThis update addresses an issue that affects applications that perform certain actions in a callback. The applications might stop working. These actions include closing a Window (WM_CLOSE).
securityThis update addresses a deadlock in Internet Protocol Security (IPsec). When you configure servers with IPsec rules, they stop responding. This issue affects virtual and physical servers.
fixThis update addresses an issue that affects Networking-MPSSVC-Svc. The issue causes a system to enter a restart loop. The stop code is 0xEF.
fixThis update addresses an issue that causes Windows to fail. This occurs when you use BitLocker on a storage medium that has a large sector size.
securityThis update affects the Windows Kernel Vulnerable Driver Blocklist, DriverSiPolicy.p7b. It adds drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
fixThis update addresses an issue that affects Active Directory Federation Services (AD FS). It might take several attempts to sign in to AD FS successfully. This is because the time calculation for the expiration of a single sign on cookie is wrong.
fixThis update addresses an issue that affects repair storage jobs. The jobs are suspended. This occurs after two physical disks in two different rack-level fault domains (three fault domain in total) lose communication.
fixThis update addresses an issue that affects AD Domains and Trusts snap-ins. They fail to enumerate domain trusts. The error message is, "The parameter is incorrect."
securitySecurity update: includes the July 2023 Security Updates
featureNew! This update improves several simplified Chinese fonts and the Microsoft Pinyin Input Method Editor (IME). They now support GB18030-2022. Characters in the Standard Chinese Characters List (GB18030-2022 implementation level 2) are available in Microsoft Yahei (regular, light, and bold),…
featureNew! This update removes Simplified Chinese handwriting recognition from Windows Server 2022. This is because conformant handwriting recognition is not available for Windows Server. Updated media will have this change. To update existing images, use the DISM tool to remove the Simplified Chinese…
fixThis update addresses an issue that affects console applications. They fail when you set the system locale to Japanese.
fixThis update addresses an issue that affects the Notepad combo box in Settings. It fails to show all the available options.
otherThis update addresses a race condition. It occurs when codepages load during early startup. This might cause a 0x7e stop error.
fixThis update addresses an issue that affects Microsoft Edge IE mode. The text on the status bar is not always visible.
fixThis update addresses an issue that affects the Microsoft HTML Application Host (HTA). This issue blocks code execution that uses Microsoft HTA. This occurs when you turn on Windows Defender Application Control (WDAC) User Mode Code Integrity (UMCI) enforced mode.
otherThe update addresses a random issue that affects svchost.exe. There is significant memory growth in a system. This occurs when svchost.exe contains the User Access Logging Service (UALSVC).
fixThis update addresses an issue that affects all the registry settings under the Policies paths. They might be deleted. This occurs when you do not rename the local temporary user policy file during Group Policy processing.
fixThis update addresses an issue that affects dot sourcing. It fails for files that contain a class definition in Windows PowerShell.
fixThis update addresses an issue that affects .msi files. A minor update is not installed. This occurs when you use the EnterpriseDesktopAppManagement configuration service provider (CSP) to distribute the .msi file.
fixThis update addresses an issue that affects msftconnecttext.net. It gets excessive HTTP traffic.
fixThis update addresses an issue that affects the Spooler service. It stops working. This issue occurs when you print using a certain workspace.
otherThe update addresses an intermittent issue that affects an audio stream. The issue disrupts the stream.
fixThis update addresses an issue that affects NCryptGetProperty(). When you call it with NCRYPT_KEY_TYPE_PROPERTY, the system returns 0x1 instead of 0x20. This occurs when the key is a machine key.
fixThis update addresses an issue that affects a tib.sys driver. It does not load. This occurs when HyperVisor-protected Code Integrity (HVCI) is enabled.
fixThis update addresses an issue that affects HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders. You can now set and maintain the correct default permissions for this directory path. When the permissions are wrong, the Start menu, search, and Azure Active Directory (Azure…
fixThis update addresses an issue that affects Active Directory Users & Computers. It stops responding. This occurs when you use TaskPad view to enable or disable many objects at the same time.
fixThis update addresses an issue that affects File Explorer. It might stop responding indefinitely. This occurs after you try to view the effective access permissions for files in File Explorer.
fixThis update addresses an issue that affects Live Migration. It might fail in a stretch cluster deployment. This occurs because the Storage Replica fails to retry after it receives a retry error from the Cluster API.
fixThis update addresses an issue that affects cluster name object of failover clustering. You cannot repair it on Azure Virtual Machines.
fixThis update addresses an issue that affects Remote Server Administration Tools (RSAT). In the Standard edition, Network Controller Management Tools is missing from the RSAT dialog.
securitySecurity update: includes the June 2023 Security Updates
fixThis update addresses an issue that affects servers that have Citrix and Ivanti as a Remote Desktop Services (RDS) server. Signing in to them takes a very long time.
otherThis update addresses a resource conflict issue between two or more threads (known as a deadlock). This deadlock affects COM+ applications.
fixThis update addresses an issue that affects the Storage Spaces Direct (S2D) cluster. It might not come online. This occurs after a periodic password rollover. The error code is 1326.
otherThis update addresses a memory leak. It occurs every time you print a rich text document.
fixThis update addresses an issue that might affect the Domain Name System (DNS) suffix search list. When you configure it, the parent domain might be missing.
otherThis update changes the support phone number for Microsoft India for Windows activation.
fixThis update addresses an issue that might cause some systems to stop working. This occurs when you implement firewall logging.
securityThis update addresses an issue that might affect the Local Security Authority Subsystem Service (LSASS). It might close sporadically. The system logs the exception 0xc0000710 in the Application Error event 1000. Because of this, the domain controller restarts unexpectedly. This issue affects…
securityThis update addresses an issue that affects the Windows Kernel. This issue is related to CVE-2023-32019. To learn more, see KB5028407.
securitySecurity update: includes the May 2023 Security Updates
featureNew! This update changes firewall settings. You can now configure application group rules.
fixThis update addresses an issue that affects conhost.exe. It stops responding.
otherThis update affects the Islamic Republic of Iran. The update supports the government’s daylight saving time change order from 2022.
otherThis update addresses issues that affect the 32-bit version of Windows Calculator.
fixThis update addresses an issue that affects apps that use DirectX on older Intel graphics drivers. You might receive an error from apphelp.dll.
fixThe update addresses an issue that sends unexpected password expiration notices to users. This occurs when you set up an account to use “Smart Card is Required for Interactive Logon” and set "Enable rolling of expiring NTLM secrets".
fixThis update addresses an issue that affects Microsoft Edge IE mode. Pop-up windows open in the background instead of in the foreground.
fixThis update addresses an issue that affects the software defined networking (SDN) virtual subnet. The delete operation creates an error. This stops the virtual subnet from being deleted.
fixThe update addresses an issue that affects AzureService Fabric containers. This change is off by default. To enable the change, set Globals.RouteResolutionOrderConfig to TRUE. To propagate the value, move the primary node for VswitchService and SDNAPI. After you set the value, this change will…
fixThis update addresses an issue that affects protected content. When you minimize a window that has protected content, the content displays when it should not. This occurs when you are using Taskbar Thumbnail Live Preview.
fixThis update addresses an issue that affects mobile device management (MDM) customers. The issue stops you from printing. This occurs because of an exception.
fixThis update addresses an issue that affects signed Windows Defender Application Control (WDAC) policies. They are not applied to the Secure Kernel. This occurs when you enable Secure Boot.
fixThis update addresses an issue that affects the Windows Defender Application Control. The policy that blocks software using a hash rule might not stop the software from running.
otherThis update addresses an Active Directory Federation Services (AD FS). You might need to retry authentication multiple times to sign in successfully.
fixThis update addresses an issue that affects accounts that run the Set-AdfsCertificate command. The command fails. This occurs when an account does not have read permissions for the related Distributed Key Manager (DKM) container.
securityThis update addresses a race condition in Windows Local Administrator Password Solution (LAPS). The Local Security Authority Subsystem Service (LSASS) might stop responding. This occurs when the system processes multiple local account operations at the same time. The access violation error code is…
fixThis update addresses an issue that affects the legacy Local Administrator Password Solution (LAPS) and the new Windows LAPS feature. They fail to manage the configured local account password. This occurs when you install the legacy LAPS .msi file after you have installed the April 11, 2023,…
fixThis update addresses an issue that affects SMB Direct. Endpoints might not be available on systems that use multi-byte character sets.
securitySecurity update: includes the April 2023 Security Updates
featureNew! This update adds many new features and improvements to Microsoft Defender for Endpoint. For more information, see What's new in Microsoft Defender for Endpoint.
featureNew! This update implements the new Windows Local Administrator Password Solution (LAPS) as a Windows inbox feature. For more information, see By popular demand: Windows LAPS available now!
fixThis update addresses an issue that affects inbound remote Component Object Model (COM) activations. They fail. The error code is 0x80010111. This occurs if the client protocol version is less than 5.7.
fixThis update addresses an issue that affects Microsoft PowerPoint. It stops working on Azure Virtual Desktop (AVD). This occurs when you use Visual Basic for Applications (VBA).
fixThis update addresses an issue that affects Windows Search. Windows Search fails inside of Windows container images.
otherThis update affects the Arab Republic of Egypt. The update supports the government’s daylight saving time change order for 2023.
fixThis update addresses an issue that affects the Key Distribution Center (KDC) service. When the service stops on a local machine, signing in to all local Kerberos fails. The error is STATUS_NETLOGON_NOT_STARTED.
fixThis update addresses an issue that affects the Windows Remote Management (WinRM) client. The client returns an HTTP server error status (500). This error occurs when it runs a transfer job in the Storage Migration Service.
fixThis update addresses an issue that affects Desired State Configuration. It loses its previously configured options. This occurs if metaconfig.mof is missing.
otherThis update addresses compatibility issues that affect some printers. These printers use Windows Graphical Device Interface (GDI) printer drivers. These drivers do not completely adhere to GDI specifications.
otherThis update addresses a stack overflow condition that causes a device to stop working. This occurs when you call xxxDestroyWindow() in Kernel mode.
otherThis update addresses a rare issue that might cause an input destination to be null. This issue might occur when you attempt to convert a physical point to a logical point during hit testing. Because of this, the computer raises a stop error.
fixThis update addresses an issue that affects certain processors that have firmware Trusted Platform Modules (TPM). You cannot use Autopilot to set them up.
fixThis update addresses an issue that affects the Fast Identity Online 2.0 (FIDO2) PIN credential icon. It does not appear on the credentials screen of an external monitor. This occurs when that monitor is attached to a closed laptop.
fixThis update addresses an issue that affects a Clustered Shared Volume (CSV). The CSV fails to come online. This occurs if you enable BitLocker and local CSV managed protectors, and the system recently rotated the BitLocker keys.
fixThis update addresses an issue that affects Windows Server 2022 domain controllers. They stop working. This occurs when they process Lightweight Directory Access Protocol (LDAP) requests.
fixThis update addresses an issue that affects Administrator Account Lockout policies. GPResult and Resultant Set of Policy did not report them.
fixThis update addresses an issue that affects MySQL commands. The commands fail on Windows Xenon containers.
fixThis update addresses an issue that affects Windows Server Failover Clustering. If you configure a cloud witness, both sites think that the other side is down. This is a “split-brain” scenario.
securitySecurity update: includes the March 2023 Security Updates
fixThis update addresses an issue that stops hyperlinks from working in Microsoft Excel.
featureThis update implements phase three of Distributed Component Object Model (DCOM) hardening. See KB5004442. After you install this update, you cannot turn off the changes using the registry key.
fixThis update addresses an issue that affects the registry size. It grows very large. This occurs because the registry entries are not removed when users sign out of an Azure Virtual Desktop (AVD) environment that uses FSlogix.
otherThis update affects the United Mexican States. This update supports the government’s daylight saving time change order for 2023.
fixThis update addresses an issue that affects the Get-WinEvent cmdlet. It fails. The system throws InvalidOperationException.
fixThis update addresses an issue that affects Azure Active Directory (Azure AD). Using a provisioning package for bulk provisioning fails.
fixThis update addresses an issue that affects the Routing and Remote Access Service (RRAS). RRAS cannot accept any new incoming virtual private network (VPN) connections.
securityThis update addresses an issue that occurs when an access control policy denies you access to a resource. When you sign out, the system does not delete the POST Security Assertion Markup Language (SAML) Request cookie. This stops you from choosing other resources the next time you sign in.
securityThis update addresses an issue that affects the Local Security Authority Subsystem Service (LSASS). LSASS might stop responding. This occurs after you run Sysprep on a domain-joined machine.
securityThis update addresses an issue that affects a computer account and Active Directory. When you reuse an existing computer account to join an Active Directory domain, joining fails. This occurs on devices that have installed Windows updates dated October 11, 2022 or later. The error message is,…
fixThis update addresses an issue that affects Storage Replication setup. Setup might fail on machines that use non En-US locales.
fixThis update addresses an issue that affects cluster name object (CNO) repairs. This issue stops you from using Failover Clustering to repair a CNO on an Azure virtual machine (VM).
otherThis update addresses a known issue that affects guest virtual machines (VMs). If they run Windows Server 2022 on some versions of VMware ESXi, the OS might not start up. This issue only affects Windows Server 2022 VMs that have Secure Boot turned on. The affected versions of VMware ESXi are…
securitySecurity update: includes the February 2023 Security Updates
featureNew! It updates the text and web link for Windows Admin Center (WAC) notifications. These appear after you sign in to the desktop unless you have turned them off. The WAC notifications highlight the available Windows Server management options.
fixThis update addresses an issue that affects searchindexer.exe. It randomly stops you from signing in or signing out.
fixThis update addresses an issue that affects local Kerberos authentication. It fails if the local Key Distribution Center (KDC) service is not active.
fixThis update addresses an issue that affects cbs.log. This issue logs messages that are not error messages in cbs.log.
fixThis update addresses an issue that affects a virtual machine (VM) that has a dual stack IPv4 and IPv6 private IP (PIP) address. When you migrate the VM from one host to another, the PIPv6 address stays mapped to the old host’s IPv6 Physical Address (PA). Because of this, the IPv6 PIP stops working.
securityThis update addresses an issue that affects all commands that change security tags. On Windows 11, version 22H2 computers, the change will fail if you update the Network Controller but not the Remote Server Administration Tools (RSAT) clients.
fixThis update addresses an issue that might occur when the Input Method Editor (IME) is active. Applications might stop responding when you use the mouse and keyboard at the same time.
fixThis update addresses an issue that might affect FindWindow() or FindWindowEx(). They might return the wrong window handle.
fixThis update addresses an issue that affects AppV. It stops file names from having the correct letter case (uppercase or lowercase).
fixThis update addresses an issue that affects Microsoft Edge. The issue removes conflicting policies for Microsoft Edge. This occurs when you set the MDMWinsOverGPFlag in a Microsoft Intune tenant and Intune detects a policy conflict.
fixThis update addresses an issue that affects Active Directory Federation Service (AD FS). The issue fails to apply the RequirePDC flag setting of “false.”
fixThis update addresses an issue that affects MSInfo.exe. It does not correctly report the enforcement status of the Windows Defender Application Control (WDAC) user mode policy.
fixThis update addresses an issue that affects the Resilient File System (ReFS) MSba tag. The issue causes a nonpaged pool leak.
fixThis update addresses an issue that affects parity virtual disks. Using Server Manager to create them fails.
securitySecurity update: includes the January 2023 Security Updates
fixThis update addresses an issue that might affect authentication. It might fail after you set the higher 16-bits of the msds-SupportedEncryptionTypes attribute. This issue might occur if you do not set the encryption types or you disable the RC4 encryption type on the domain.
fixThis update addresses an issue that causes the get-winevent command to fail. The error code is InvalidOperationException.
fixThis update addresses an issue that affects certain systems that have firmware Trusted Platform Modules. (TPM). This issue stops you from using AutoPilot to set up those systems.
featureThis update addresses issues that affect the Local Session Manager (LSM). These issues might allow users who do not have admin rights to perform actions that only an admin can.
otherThis update addresses a known issue that affects apps that use Microsoft Open Database Connectivity (ODBC) SQL Server Driver (sqlsrv32.dll) to connect to databases. The connection might fail. You might also receive an error in the app, or you might receive an error from the SQL Server.
otherThis update addresses an known issue that affects Hyper-V hosts that use software defined networking (SDN) and are managed by System Center Virtual Machine Manager (VMM). You might receive an error for workflows that involve:
featureCreating a new network adapter for an existing virtual machine (VM) that is joined to a VM network
featureCreating a new VM that has a network adapter that is joined to a VM network.
securitySecurity update: includes the December 2022 Security Updates
fixThis update addresses an issue that affects remote networks. This issue stops you from reconnecting to them using DirectAccess.
securityIt addresses a known issue that might affect Windows Servers that have the Domain Controller (DC) role. They might have Kerberos authentication issues if both of the following are true: You might receive Microsoft-Windows-Kerberos-Key-Distribution-Center Event ID 14 errors. These appear in the…
otherYou installed the November 8, 2022, or later update on the DC
otherYou configured the SupportedEncrytionType key to remove the RC4 cipher at a domain level or on individual accounts
securitySecurity update: includes the November 2022 Security Updates
securityIt addresses security vulnerabilities in the Kerberos and Netlogon protocols as outlined in CVE-2022-38023, CVE-2022-37966, and CVE-2022-37967. For deployment guidance, see the following:
securityKB5020805: How to manage the Kerberos Protocol changes related to CVE-2022-37967
securityKB5021130: How to manage Netlogon Protocol changes related to CVE-2022-38023
securityKB5021131: How to manage the Kerberos Protocol changes related to CVE-2022-37966
securityIt addresses an issue that might affect some types of Secure Sockets Layer (SSL) and Transport Layer Security (TLS) connections. These connections might have handshake failures. For developers, the affected connections are likely to receive one or more records followed by a partial record with a…
securitySecurity update: includes the October 2022 Security Updates
otherIt addresses a known issue that might affect file copies that use Group Policy Preferences. They might fail or might create empty shortcuts or files that have 0 (zero) bytes.
securitySecurity update: includes the September 2022 Security Updates
securityThis update contains miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release.
securitySecurity update: includes the August 2022 Security Updates
securityAddresses an issue that might cause the Local Security Authority Server Service (LSASS) to leak tokens. This issue affects devices that have installed Windows updates dated June 14, 2022 or later. This issue occurs when the device performs a specific form of service for user (S4U) in a non-Trusted…
securitySecurity update: includes the July 2022 Security Updates
fixAddresses an issue that redirects the PowerShell command output so that transcript logs do not contain any content. Transcript logs might contain decrypted passwords if you turn PowerShell logging on. Consequently, the transcript logs lose the decrypted passwords.
securitySecurity update: includes the June 2022 Security Updates
securityAddresses an elevation of privilege (EOP) vulnerability under CVE-2022-30154 for the Microsoft File Server Shadow Copy Agent Service. To become protected and functional, you must install the June 14, 2022 or later Windows update on both the application server and the file server. The application…
otherAddresses a known issue that might cause authentication failures for some services on a server or client after you install the May 10, 2022 update on domain controllers. These services include Network Policy Server (NPS), Routing and Remote access Service (RRAS), Radius, Extensible Authentication…
securityThis update contains miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release.
securityAddresses an issue that causes a Denial of Service vulnerability on Cluster Shared Volumes (CSV). For more information, see CVE-2020-26784.
fixAddresses an issue that prevents you from changing a password that has expired when you sign in to a Windows device.
securitySecurity update: includes the March 2022 Security Updates
securityThis update contains miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release.
fixAddresses an issue that causes a Lightweight Directory Access Protocol (LDAP) modify operation to fail if the operation contains the SamAccountName and UserAccountControl attributes. The error message is, “Error: 0x20EF. The directory service encountered an unknown failure”.
securityAddresses a known issue that might cause IP Security (IPSEC) connections that contain a Vendor ID to fail. VPN connections using Layer 2 Tunneling Protocol (L2TP) or IP security Internet Key Exchange (IPSEC IKE) might also be affected.
otherAddresses a known issue that might cause Windows Servers to restart unexpectedly after installing the January 11, 2022 update on domain controllers (DCs).
fixAddresses an issue that prevents Active Directory (AD) attributes from being written properly during a Lightweight Directory Access Protocol (LDAP) modify operation when you make multiple attribute changes.
fixAddresses an issue that might prevent removable media that is formatted using the Resilient File System (ReFS) from mounting or might cause the removable media to mount in the RAW file format. This issue occurs after installing the January 11, 2022 Windows update.
securitySecurity update: includes the January 2022 Security Updates
otherAddresses a known issue that affects Japanese Input Method Editors (IME). When you use a Japanese IME to enter text, the text might appear out of order or the text cursor might move unexpectedly in apps that use the multibyte character set (MBCS). This issue affects the Microsoft Japanese IME and…
otherAddresses a known issue that might prevent you from using Remote Desktop to reach the server. In some circumstances, the server might stop responding. The screen might also appear black, and general performance and signing in might be slow.
securitySecurity update: includes the December 2021 Security Updates
otherAddresses a known issue that might prevent Microsoft Defender for Endpoint from starting or running on devices that have a Windows Server Core installation.
securityFixes CVE-2026-96951: Windows Shell Security Feature Bypass Vulnerability
securityFixes CVE-2026-100202: Windows Message Queuing Queue Manager Remote Code Execution Vulnerability
securityFixes CVE-2026-70147: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-70153: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-96934: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-97814: Windows Text Shaping Remote Code Execution Vulnerability
securityFixes CVE-2026-100220: Windows Media Video Decoder Remote Code Execution Vulnerability
securityFixes CVE-2026-102214: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-102225: Windows Text Shaping Remote Code Execution Vulnerability
securityFixes CVE-2026-108467: Microsoft PostScript Printer Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-108471: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
securityFixes CVE-2026-70250: Windows DHCP Client Remote Code Execution Vulnerability
securityFixes CVE-2026-83934: Windows GDI+ Remote Code Execution Vulnerability
securityFixes CVE-2026-96913: Windows Kernel Elevation of Privilege Vulnerability
securityFixes CVE-2026-96914: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
securityFixes CVE-2026-96952: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-108460: Windows Message Queuing Remote Code Execution Vulnerability
securityFixes CVE-2026-69802: Network Device Enrollment Service (NDES) Remote Code Execution Vulnerability
securityFixes CVE-2026-70187: Windows Remote Desktop Services Remote Code Execution Vulnerability
securityFixes CVE-2026-70229: Windows Active Directory Domain Services Remote Code Execution Vulnerability
securityFixes CVE-2026-88117: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-88119: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-88120: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-88171: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-88174: Windows Deployment Services Remote Code Execution Vulnerability
securityFixes CVE-2026-100215: Microsoft Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-108131: Active Directory Federation Services (AD FS) Spoofing Vulnerability
securityFixes CVE-2026-96222: Active Directory Federation Services (AD FS) Spoofing Vulnerability
securityFixes CVE-2026-108399: Windows Hyper-V Elevation of Privilege Vulnerability
securityFixes CVE-2026-102211: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
securityFixes CVE-2026-83917: Windows ALPC Elevation of Privilege Vulnerability
securitySecurity update: includes the October 2026 Security Updates
featureThis update enables permanent Daylight Savings Time (DST) support for British Columbia and Alberta starting in November 2026.
featureThis update introduces the new time zone Manitoba Standard Time "(UTC-5:00) Manitoba".
feature[Authentication] Enhanced NTLM auditing is now available on Windows Server 2022 and 2019. The new auditing capabilities provide greater visibility into NTLM authentication, helping administrators identify who is using NTLM, why NTLM was selected, and where NTLM authentication is occurring. This…
fix[BitLocker] This update fixes an issue in which drives encrypted by BitLocker To Go on newer systems were not recognized by older systems. Now, you can access encrypted data on these drives when using older systems.
security[ReFS security] This update adds auditing and optional policy controls for ReFS volumes on externally attached storage devices. Auditing is enabled by default, while enforcement controls remain disabled by default to give administrators time to evaluate and prepare for future security hardening…
security[Distributed Key Manager (DKM)] This update automatically remediates insecure DKM container ACL configurations in AD FS by default. Administrators can opt out of automatic remediation by setting RemediateDkmAcl to 0. This change helps address an elevation of privilege vulnerability that can occur…
feature[Secure Boot] This update continues the deployment of updated Secure Boot certificates using the latest high-confidence targeting data to identify eligible devices that are ready to automatically receive the new certificates. Deployment through Windows Update remains ongoing across supported device.
fix[File History (known issue)] Fixed: This update addresses an issue where File History might fail to back up or restore files to an external drive or network location. Affected devices might incorrectly display a "Reconnect your drive" message even when a compatible backup drive is connected and…
securitySecurity update: includes the September 2026 Security Updates
security[Remote Desktop Services (known issue)] Fixed: This update addresses an issue affecting Remote Desktop Services (RDS) after installing the September 2026 Windows security update (KB5122876). In affected environments, RDS might become unstable, causing RDP connection and sign-in failures or servers…
fix[8-channel or 3D audio modes] Fixed: Some USB Audio Class 1.0 devices functioning as expected in standard stereo configurations failed when using multichannel audio features, including 8-channel or 3D audio modes. (Note: There are other audio symptoms not resolved in this OOB update. See the…
otherThe device displays an error in Device Manager: "This device cannot start (Code 10).”
otherNo audio output.
otherVolume controls are unresponsive or remain at zero.
otherSound settings are unresponsive or unavailable.
securityFixes CVE-2026-85880: Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability
securityFixes CVE-2026-69579: Windows Message Queuing Remote Code Execution Vulnerability
securityFixes CVE-2026-69590: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
securityFixes CVE-2026-69595: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-69730: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-69769: Windows HTTP Print Provider Remote Code Execution Vulnerability
securityFixes CVE-2026-69829: Windows Shell Remote Code Execution Vulnerability
securityFixes CVE-2026-69845: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-70296: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-72979: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-72982: Windows Netlogon Remote Code Execution Vulnerability
securityFixes CVE-2026-72983: Internet Connection Sharing (ICS) Remote Code Execution Vulnerability
securityFixes CVE-2026-73009: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability
securityFixes CVE-2026-73010: Microsoft Failover Cluster Remote Code Execution Vulnerability
securityFixes CVE-2026-77493: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-78445: Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
securityFixes CVE-2026-69499: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-69518: Windows Remote Desktop Remote Code Execution Vulnerability
securityFixes CVE-2026-69601: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-69603: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-69676: Windows Kerberos Remote Code Execution Vulnerability
securityFixes CVE-2026-69712: Windows Key Distribution Center Remote Code Execution Vulnerability
securityFixes CVE-2026-69860: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-70203: Windows Media Player Remote Code Execution Vulnerability
securityFixes CVE-2026-70586: Windows Paint Remote Code Execution Vulnerability
securityFixes CVE-2026-72950: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
securityFixes CVE-2026-72959: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
securityFixes CVE-2026-72960: Windows Media Player Remote Code Execution Vulnerability
securityFixes CVE-2026-72986: Graphic Fonts Remote Code Execution Vulnerability
securityFixes CVE-2026-73006: DirectWrite Remote Code Execution Vulnerability
securityFixes CVE-2026-73013: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-73018: Graphic Fonts Remote Code Execution Vulnerability
securityFixes CVE-2026-73023: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-77495: Windows Imaging Component Remote Code Execution Vulnerability
securityFixes CVE-2026-77504: Microsoft Office Word Remote Code Execution Vulnerability
securityFixes CVE-2026-81955: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-69846: Windows Secure Kernel Mode Elevation of Privilege Vulnerability
securityFixes CVE-2026-69874: Windows ALPC Elevation of Privilege Vulnerability
securityFixes CVE-2026-69906: Windows Secure Kernel Mode Elevation of Privilege Vulnerability
securityFixes CVE-2026-72961: Windows Hyper-V Elevation of Privilege Vulnerability
+25 more items in the release notes
securityFixes CVE-2026-68820: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
securityFixes CVE-2026-62878: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-62893: Windows Deployment Services TFTP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-65791: Windows iSCSI Target Service Remote Code Execution Vulnerability
securityFixes CVE-2026-62816: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
securityFixes CVE-2026-62817: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-62818: Windows Active Directory Certificate Services (AD CS) Remote Code Execution Vulnerability
securityFixes CVE-2026-62822: Windows GDI+ Remote Code Execution Vulnerability
securityFixes CVE-2026-62823: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-62819: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
securityFixes CVE-2026-62820: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-62889: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability
securityFixes CVE-2026-65679: Windows iSCSI Target Service Remote Code Execution Vulnerability
securityFixes CVE-2026-65789: Windows DNS Server Remote Code Execution Vulnerability
securityFixes CVE-2026-65796: Windows iSCSI Target Service Remote Code Execution Vulnerability
securityFixes CVE-2026-66802: Windows Device Health Attestation (DHA) Remote Code Execution Vulnerability
securityFixes CVE-2026-71331: Windows Device Health Attestation (DHA) Remote Code Execution Vulnerability
securityFixes CVE-2026-62890: Windows GDI+ Elevation of Privilege Vulnerability
securityFixes CVE-2026-66799: Windows Key Guard Elevation of Privilege Vulnerability
securitySecurity update: includes the August 2026 Security Updates
other[Backup] File History automatic backups to network shares using Server Message Block (SMB) might fail with an incorrect "invalid credentials" error. When this issue occurs, scheduled backups do not copy any files. This update resolves the issue.
feature[Secure Boot] This update includes additional high confidence device targeting data, increasing coverage of devices eligible to automatically receive new Secure Boot certificates. Certificate deployment via Windows updates continues across supported PCs and non-managed business devices in the…
securityFixes CVE-2026-56155: Active Directory Federation Services Elevation of Privilege Vulnerability
securityFixes CVE-2026-57092: Microsoft Windows VMSwitch Elevation of Privilege Vulnerability
securityFixes CVE-2026-50518: Windows DHCP Server Remote Code Execution Vulnerability
securityFixes CVE-2026-56159: DHCP Server Service Remote Code Execution Vulnerability
securityFixes CVE-2026-56188: Windows Server Network driver Remote Code Execution Vulnerability
securityFixes CVE-2026-50380: Windows GDI+ Remote Code Execution Vulnerability
securityFixes CVE-2026-48564: DHCP Server Service Remote Code Execution Vulnerability
securityFixes CVE-2026-50370: DHCP Server Service Remote Code Execution Vulnerability
securityFixes CVE-2026-50382: DirectX Graphics Kernel Remote Code Execution Vulnerability
securityFixes CVE-2026-50444: Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability
securityFixes CVE-2026-50474: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-54121: Active Directory Certificate Services Elevation of Privilege Vulnerability
securityFixes CVE-2026-54982: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
securityFixes CVE-2026-54999: Windows TCP/IP Remote Code Execution Vulnerability
securityFixes CVE-2026-57087: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-57090: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-57094: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-58608: Windows Print Spooler Remote Code Execution Vulnerability
securityFixes CVE-2026-54128: Windows DHCP Client Remote Code Execution Vulnerability
securityFixes CVE-2026-54992: Microsoft Message Queuing Queue Manager Remote Code Execution Vulnerability
securityFixes CVE-2026-50680: Windows Hyper-V Elevation of Privilege Vulnerability
securityFixes CVE-2026-49164: Windows Active Directory Domain Services Remote Code Execution Vulnerability
securityFixes CVE-2026-50694: Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability
securityFixes CVE-2026-54995: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
securityFixes CVE-2026-42982: Windows Secure Kernel Mode Elevation of Privilege Vulnerability
securityFixes CVE-2026-49796: Windows GDI+ Remote Code Execution Vulnerability
securityFixes CVE-2026-50655: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-56189: Microsoft Windows Media Foundation Remote Code Execution Vulnerability
securityFixes CVE-2026-44815: DHCP Client Service Remote Code Execution Vulnerability
securityFixes CVE-2026-47291: HTTP.sys Remote Code Execution Vulnerability
securityFixes CVE-2026-42985: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-47289: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-45607: Windows Hyper-V Remote Code Execution Vulnerability
securityFixes CVE-2026-42987: Windows Deployment Services (WDS) Remote Code Execution
securityFixes CVE-2026-33828: Windows Device Health Attestation (DHA) Elevation of Privilege Vulnerability
securityFixes CVE-2026-44803: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-44812: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-48574: Windows Media Remote Code Execution Vulnerability
securityFixes CVE-2026-42992: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-44799: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-44801: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-47654: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-48563: Remote Desktop Client Remote Code Execution Vulnerability
securityFixes CVE-2026-47288: Windows Kerberos Key Distribution Center (KDC) Remote Code Execution
securityFixes CVE-2026-41089: Windows Netlogon Remote Code Execution Vulnerability
securityFixes CVE-2026-40403: Windows Graphics Component Remote Code Execution Vulnerability
securityFixes CVE-2026-35421: Windows GDI Remote Code Execution Vulnerability
securityFixes CVE-2026-32161: Windows Native WiFi Miniport Driver Remote Code Execution Vulnerability
securitySecurity update: includes the April 2026 Security Updates
security[Domain controllers (known issue)] Fixed: After installing the April 14, 2026, (KB5082123) Windows security update and restarting, domain controllers with multi-domain forests that use Privileged Access Management (PAM), might experience startup issues. In some cases, Local Security Authority…
securitySecurity update: includes the April 2026 Security Updates
fix[PowerShell (known issue)] Fixed: After installing Windows updates released on or after January 13, 2026, Japanese language installations of Windows Server 2019 might not correctly display Japanese characters in the PowerShell console.
security[Remote Desktop] This update improves protection against phishing attacks that use Remote Desktop (.rdp) files. When you open an .rdp file, Remote Desktop shows all requested connection settings before it connects, with each setting turned off by default. A one-time security warning also appears…
security[Vulnerable driver blocklist] This update introduces a security hardening change that adds known vulnerable kernel drivers to the Microsoft vulnerable driver blocklist. Backup applications that rely on blocked drivers might experience failures when attempting to mount or manage disk images. These…
security[Windows Deployment Services (WDS)] This update disables the “Hands-Free Deployment” feature in WDS by default and is no longer a supported feature. For more information about this change, see Windows Deployment Services (WDS) Hands-Free Deployment Hardening Guidance related to CVE-2026-0386.
security[Kerberos protocol] This update changes the default DefaultDomainSupportedEncTypes value for Kerberos Key Distribution Center (KDC) operations to leverage AES-SHA1 for accounts that do not have an explicit msds-SupportedEncryptionTypes Active Directory attribute defined. For more information see,…
securityThis update enables dynamic status reporting for Secure Boot states in the Windows Security App (Settings > Update & Security > Windows Security). Learn more about the status alerts via badges and notifications. Note that these enhancements are disabled by default on commercial devices and servers.
fixThis update fixes an issue that could cause a device to enter BitLocker Recovery after Secure Boot updates.
featureWith this update, Windows quality updates include additional high confidence device targeting data, increasing coverage of devices eligible to automatically receive new Secure Boot certificates. Devices receive the new certificates only after demonstrating sufficient successful update signals,…
securitySecurity update: includes the March 2026 Security Updates
feature[Windows System Image Manager] This update adds a warning dialog to help users confirm that the selected catalog file comes from a trusted source.
feature[File History] Improved: File History in Control Panel when backing up files. New files with names containing some Chinese and Private Use Area characters can now be backed up.
feature[Secure Boot] With this update, Windows quality updates include additional high confidence device targeting data, increasing coverage of devices eligible to automatically receive new Secure Boot certificates. This targeting is based primarily on client device diagnostic data; due to limited data,…
securitySecurity update: includes the February 2026 Security Updates
other[Fonts] This update includes changes to Chinese fonts to meet GB18030-2022A compliance.
security[OS Security (known issue)] Fixed: After installing the Windows security update released on or after January 13, 2026, some Secure Launch-capable PCs with Virtual Secure Mode (VSM) enabled are unable to shut down or enter hibernation. Instead, the device restarts.
fix[Folders] Fixed: This update fixes an issue that affects folder renaming with desktop.ini files in File Explorer. The LocalizedResourceName setting was ignored, so custom folder names did not show. Now, custom folder names appear as expected.
fix[Graphics] Fixed: A stability issue affecting certain graphics processing units (GPUs) configurations.
securitySecurity update: includes the January 2026 Security Updates
fix[File System] Fixed: After installing the Windows update released on and after January 13, 2026, some applications became unresponsive or encountered unexpected errors when opening files from or saving files to cloud-based storage, such as OneDrive or Dropbox. In certain Outlook configurations…
securitySecurity update: includes the January 2026 Security Updates
fix[Remote Desktop] Fixed: Some users experienced sign-in failures during Remote Desktop connections. This issue affected authentication steps for different Remote Desktop applications on Windows such as the Windows App.
securitySecurity update: includes the January 2026 Security Updates
security[Credentials autofill] This update introduces a security hardening behavior restricting certain applications to autofill credentials during remote support sessions or automated authentication workflows. With this change, credential dialogs do not respond to virtual keyboard input from remote…
feature[Windows Deployment Services (WDS)] This update introduces a change in behavior in which WDS will stop supporting hands-free deployment functionality by default. Admins should review guidance and follow instructions provided in Windows Deployment Services (WDS) Hands-Free Deployment Hardening…
other[Drivers] This update removes the following modem drivers: agrsm64.sys (x64), agrsm.sys (x86), smserl64.sys (x64) and smserial.sys (x86). Modem hardware dependent on these specific drivers will no longer work in Windows.
security[WinSqlite3.dll] Fixed: The Windows core component, WinSqlite3.dll, has been updated. Previously, some security software might have detected this component as vulnerable. Note WinSqlite3.dll is a separate component from sqlite3.dll, which is found in application-specific directories and is not a…
securitySecurity update: includes the December 2025 Security Updates
fix[Message queuing (MSMQ) (known issue)] Fixed: After installing the Windows updates released on December 9, 2025, users experienced issues with the Message Queuing (MSMQ) functionality. This issue also impacts a clustered MSMQ environment under load. This issue might lead to message queues becoming…
securitySecurity update: includes the December 2025 Security Updates
security[PowerShell 5.1] The Invoke-WebRequest command now includes a confirmation prompt with a security warning of a script execution risk. You can choose to continue or cancel the request. For additional details, see CVE-2025-54100 and KB5074596: PowerShell 5.1: Preventing script execution from web…
deprecated[People app] After installing this update, the People icon on the taskbar will no longer respond. This feature is being deprecated in Windows Server 2019 and Windows 10, version 1809.
securitySecurity update: includes the November 2025 Security Updates
security[App compatibility (known issue)] Fixed: This update addresses an issue that created unexpected User Account Control (UAC) prompts for some apps, including Autodesk AutoCAD. For more information, see Unexpected UAC prompts when running MSI repair operations after installing the August 2025 Windows…
security[Internal Windows OS] This update contains miscellaneous security improvements to internal Windows OS functionality. No specific issues are documented for this release.
securitySecurity update: includes the October 2025 Security Updates
security[Windows Server Update Services (WSUS)] Fixed: This update addresses a remote code execution (RCE) vulnerability that was identified in WSUS reporting web services. For more information about the security fix, see CVE-2025-59287.
securitySecurity update: includes the October 2025 Security Updates
fixFixed: An issue with the Chinese Input Method Editor (IME). Private Unicode characters were shown incorrectly and did not meet GB18030 standard.
fixFixed: An issue that affects USER32 Edit controls. Surrogate pairs appear as empty boxes when text fields reach their length limit.
fixFixed: An issue that affects PowerShell Remoting and WinRM in which commands time out after 600 seconds.
otherThis update removes the ltmdm64.sys driver. Fax modem hardware dependent on this specific driver will no longer work in Windows.
securityThis update enforces a security hardening improvement by requiring use of Key Storage Provider (KSP) instead of Cryptographic Service Provider {CSP) for RSA-based smart card certificates. If you experience problems with smart card authentication as a result of this design change, see the Windows…
securityAfter installing this update, File Explorer automatically disables the preview feature for files downloaded from the internet. This change is designed to enhance security by preventing a vulnerability when users preview potentially unsafe files. For details, including steps to unblock files, see…
securityFixed: This update addresses an issue observed in rare cases after installing the May 2025 security update and subsequent updates causing devices to experience stability issues. Some devices became unresponsive and stopped responding in specific scenarios.
securitySecurity update: includes the September 2025 Security Updates
fix[Input and Composition] Fixed: An issue with the Chinese Simplified Input Method Editor (IME). Some extended characters were showing as empty boxes.
security[App compatibility (known issue)] Fixed: Addresses an issue that caused non-admin users to receive unexpected User Account Control (UAC) prompts when MSI installers perform certain custom actions. These actions might include configuration or repair operations in the foreground or background,…
security[File Server] New! This update enables auditing SMB client compatibility for SMB Server signing as well as SMB Server EPA. This allows customers to assess their environment and identify any potential device or software incompatibility issues before deploying the hardening measures that are already…
feature[Active Directory] New! Adds support for Certificate Revocation List (CRL) partitioning in Windows Certificate Authorities.
securitySecurity update: includes the August 2025 Security Updates
security[Fix for reset and recovery issue] This update addresses an issue introduced by the August 2025 security update (KB5063877) in which attempts to reset and recover the device fails. This issue happens when users perform one or more of the following processes: For more information on this issue, see…
otherSystem >Recovery > Reset my PC
otherSystem > Recovery >Fix problems using Windows Update
securitySecurity update: includes the August 2025 Security Updates
fix[Input and Composition] Fixed: A known issue with the Microsoft Changjie Input Method. Users were unable to select words after a recent update.
fix[Cluster Service] Fixed: A known issue affecting Windows Server 2019 where the Cluster Service would repeatedly stop and restart. This behavior caused nodes to fail to rejoin the cluster or enter quarantine, virtual machines to restart multiple times, and frequent Event ID 7031 errors in the event…
securitySecurity update: includes the July 2025 Security Updates
fix[Input and Composition] Fixed: An issue affecting the complete removal of unused language packs and Feature on Demand (FOD) packages. This issue led to unnecessary storage use and increased Windows update installation time.
security[Network Security and Containers] Fixed: An issue in the CharNextW function which caused incorrect character rendering for GB18030-2022 compliance. The function has been deprecated and replaced with a modern ICU-based solution to ensure proper handling of GB18030-2022 requirements.
fix[DHCP Server (known issue] Fixed: An issue in which the DHCP Server service might intermittently stop responding and affects IP renewal for clients.
security[Microsoft RPC Netlogon protocol] This update includes a security hardening change to the Microsoft RPC Netlogon protocol. This change improves security by tightening access checks for a set of remote procedure call (RPC) requests. After this update is installed, Active Directory domain…
securitySecurity update: includes the June 2025 Security Updates
fix[GDI and GDI+] Fixed: Some characters were rendered wider, and the sample paragraph was broken.
fix[Windows Hello] Fixed: This update addresses an issue that prevents users from signing in with self-signed certificates when using Windows Hello for Business with the Key Trust model.
securitySecurity update: includes the May 2025 Security Updates
fix[Hyper-V Platform] Fixed: An issue in the direct send path for a guest physical address (GPA). This issue caused confidential virtual machines running on Hyper-V with Windows Server 2022 to intermittently stop responding or restart unexpectedly. As a result, service availability was affected, and…
securitySecurity update: includes the May 2025 Security Updates
security[OS Security] Updates to the Windows Kernel Vulnerable Driver Blocklist (DriverSiPolicy.p7b). Additions have been made to blocklist drivers with security vulnerabilities that have been used in Bring Your Own Vulnerable Driver (BYOVD) attacks.
fix[GRFX-Graphics] This update addresses an issue causing an error message on a blue screen particularly in cases linked to recent GDI updates with CHS GB18030-2022 fonts. Corruption occurs while the associated thread remains active, leading to an error message.
other[Secure Boot Advanced Targeting (SBAT) and Linux Extensible Firmware Interface (EFI)] This update applies improvements to SBAT for the detection of Linux systems.
fixThis update fixes an issue caused by 2025.04 B container images released on April 8, 2025 where Windows containers running in Hyper-V isolation mode could fail to start in some cases if their update level didn’t match that of the hosting utility virtual machine (UVM). The mismatch caused…
securityIt addresses a known issue where Audit Logon/Logoff events in the local policy of the Active Directory Group Policy might not show as enabled on the device even if they are enabled and working as expected. This can be observed in the Local Group Policy Editor or Local Security Policy, where local…
securitySecurity update: includes the April 2025 Security Updates
securityThis update addresses security issues for your Windows operating system.
other[Daylight Saving Time (DST)] Update for the Aysen region in Chile to support the government DST change order in 2025. For more information about DST changes, see the Daylight Saving Time & Time Zone Blog.
security[OS Security] After installing this update or a later Windows update, a new %systemdrive%\inetpub folder will be created on your device. This folder should not be deleted regardless of whether Internet Information Services (IIS) is enabled on the target device. This behavior is part of changes…
security[Kerberos Authentication] Change of behavior: Adds protections for a vulnerability which occurs when a certificate authority is part of the Windows root store but not the NTAuth store. This change enabled by default might cause Event ID: 45 events to be logged on the domain controller. For more…
security[Windows Hello] After installing this update or a later Windows update, for enhanced security, Windows Hello facial recognition requires color cameras to see a visible face when signing in. For more information, see CVE-2025-26644.
securitySecurity update: includes the March 2025 Security Updates
securityThis update addresses security issues for your Windows operating system.
other[Daylight saving time (DST)] Updated: DST changes for Paraguay. For more information, see the Daylight Saving Time & Time Zone Blog.
feature[GB18030-2022] This update adds support for this amendment.
other[Temporary files] This update enables system processes to store temporary files in a secure directory "C:\Windows\SystemTemp" via either calling GetTempPath2 API or using .NET's GetTempPath API, thereby reducing the risk of unauthorized access.
fix[Open Secure Shell (OpenSSH) (known issue)] Fixed: The service fails to start, which stops SSH connections. There is no detailed logging, and you must run the sshd.exe process manually.
securitySecurity update: includes the February 2025 Security Updates
security[USB cameras] Fixed: Your device does not recognize the camera is on. This issue occurs after you install the January 2025 security update.
fix[USB audio device drivers] Fixed: The code 10 error message, “This device cannot start” appears. This occurs when you connect to certain external audio management devices.
securitySecurity update: includes the January 2025 Security Updates
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the December 2024 Security Updates
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the November 2024 Security Updates
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the October 2024 Security Updates
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the September 2024 Security Updates
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the August 2024 Security Updates
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the July 2024 Security Updates
other[Language for context menus and dialog buttons (known issue)] In Windows apps, parts of the UI might display in English when English is not set as the display language. Also, the font size might change for the names of tabs and buttons.
securitySecurity update: includes the June 2024 Security Updates
securityThis update addresses security issues for your Windows operating system.
otherThis update addresses a known issue that is related to the English (United States) language pack.
securitySecurity update: includes the May 2024 Security Updates
fixThis update addresses an issue in that affects IE mode. It stops responding. This occurs if you press the left arrow key when an empty text box has focus and caret browsing is on.
otherThis update addresses a known issue that might cause your VPN connection to fail. This occurs after you install the update dated April 9, 2024, or later.
securitySecurity update: includes the April 2024 Security Updates
fixThis update addresses an issue that affects the touch keyboard. Sometimes it does not open.
securityThis update addresses a known issue that affects the Local Security Authority Subsystem Service (LSASS).
securitySecurity update: includes the March 2024 Security Updates
fixThis update addresses an issue that affects the touch keyboard. Sometimes it does not open.
securitySecurity update: includes the February 2024 Security Updates
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the January 2024 Security Updates
fixThis update addresses an issue that causes IE mode to stop responding. This occurs if you press the left arrow key when an empty text box has the focus and caret (cursor) browsing is on.
fixThis update addresses an issue that affects touchscreens. They do not work properly when you use more than one monitor.
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the December 2023 Security Updates
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the November 2023 Security Updates
otherThis update supports the currency change in Croatia from the kuna to the euro.
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the October 2023 Security Updates
otherThis update supports daylight saving time (DST) changes in Greenland.
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the September 2023 Security Updates
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the August 2023 Security Updates
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the July 2023 Security Updates
fixThe update addresses an issue that affects a site that is in IE mode. The site does not transition out of IE mode when it is expected.
fixThis update addresses an issue that affects IE mode. The text on the status bar is not always visible.
otherThe update addresses an intermittent issue that affects an audio stream. The issue disrupts the stream.
securitySecurity update: includes the June 2023 Security Updates
fixThis update addresses an issue that affects the touch keyboard. The touch keyboard Intermittently fails to open.
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the May 2023 Security Updates
otherThis update addresses issues that affect the 32-bit version of Windows Calculator.
fixThis update addresses an issue that affects Microsoft Edge IE mode. The issue stops you from configuring add-ons.
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the April 2023 Security Updates
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the March 2023 Security Updates
securityThis update addresses security issues for your Windows operating system.
fixThis update addresses an issue that stops hyperlinks from working in Microsoft Excel.
securitySecurity update: includes the February 2023 Security Updates
securityThis update addresses security issues for your Windows operating system.
securitySecurity update: includes the January 2023 Security Updates
securityThis update addresses security issues for your Windows operating system.
otherThis update addresses an known issue that affects Hyper-V hosts that use software defined networking (SDN) and are managed by System Center Virtual Machine Manager (VMM).
securitySecurity update: includes the December 2022 Security Updates
otherThis update addresses the suspension of daylight saving time (DST) in the Republic of Fiji for this year.
securityThis update addresses security issues for your Windows operating system.
otherIt addresses a known issue that affects Windows Servers that have the Domain Controller (DC) role. They might have Kerberos authentication issues.
securitySecurity update: includes the November 2022 Security Updates
otherIt stops the start of daylight saving time in Jordan at the end of October 2022. The Jordan time zone will permanently shift to the UTC + 3 time zone.
fixIt addresses an issue that affects the font of three Chinese characters. When you format these characters as bold, the width size is wrong.
securityIt addresses security issues for your Windows operating system.
securityIt addresses an issue that might affect some types of Secure Sockets Layer (SSL) and Transport Layer Security (TLS) connections. These connections might have handshake failures. For developers, the affected connections are likely to receive one or more records followed by a partial record with a…
securitySecurity update: includes the October 2022 Security Updates
fixIt addresses an issue that affects a task you schedule to run every two (or more) weeks. It runs every week instead.
securityIt addresses security issues for your Windows operating system.
securitySecurity update: includes the September 2022 Security Updates
securityAddresses security issues for your Windows operating system.
securitySecurity update: includes the August 2022 Security Updates
securityAddresses security issues for your Windows operating system.
securitySecurity update: includes the July 2022 Security Updates
securityAddresses security issues for your Windows operating system.
securitySecurity update: includes the June 2022 Security Updates
securityAddresses security issues for your Windows operating system.
otherAddresses a known issue that might prevent some services from authenticating machine accounts on clients or servers. This issue occurs after you install the May 10, 2022 update on domain controllers.
securitySecurity update: includes the May 2022 Security Updates
securityAddresses security issues for your Windows operating system.
securitySecurity update: includes the April 2022 Security Updates
otherUpdates an issue that prevents you from changing a password that has expired when you sign in to a Windows device.
securityUpdates security for your Windows operating system.
securitySecurity update: includes the March 2022 Security Updates
securityUpdates security for your Windows operating system.
securitySecurity update: includes the February 2022 Security Updates
securityUpdates security for your Windows operating system.
otherUpdates a known issue that affects VPN connections.
otherUpdates a known issue that causes unexpected restarts on Windows Server domain controllers.
securitySecurity update: includes the January 2022 Security Updates
securityUpdates security for your Windows operating system.
otherUpdates a known issue that might prevent you from using Remote Desktop to reach the server and also slows performance.
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