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The Update Bureau

Windows 11

Windows 11 updates

All published releases for Windows 11, newest first: what each update changes, whether to install it and any confirmed known issues. Latest release: November 13, 2026.

47 active known issues →

Windows 11 updates

  • Windows 11 24H2 Windows 11 24H2 Out-of-band update Also for Windows Server
    Out-of-band

    KB5061977

    Hyper-V confidential VMs stop responding or restart unexpectedly

    Confidential VMs on Hyper-V with Windows Server 2025 might stop responding or restart unexpectedly. This out-of-band update fixes the issue, which mainly affects Azure confidential VMs.

    Check the newer update, KB5058499
    Known issues: 1 open Organizations and IT administrators
    • Print to PDF might not work

    Key changes 1 change

    • Fix Hyper-V Platform: Confidential VMs on Hyper-V might stop responding or restart unexpectedly. This mainly affects Azure confidential VMs on Windows Server...

    Read update Source: Microsoft

    Build
    26100.4066
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5058502

    Copilot voice controls and Settings FAQs arrive; input issues addressed

    Adds Copilot voice controls, Settings FAQs, and other gradual changes. It also addresses input and system issues, while blurry CJK text at 96 DPI remains a known issue.

    Check the newer update, KB5062170
    Known issues: 1 open
    • Noto fonts issue

    Key changes 17 changes

    • New Copilot: You can open Copilot with Win + C and personalize the Copilot key or Win + C behavior in Settings.
    • New Copilot: Press and hold the Copilot key for two seconds to start Press to talk. If your keyboard has no Copilot key, hold Win + C for two second...
    • New Settings: A new FAQs section answers common questions about your PC and Windows 11.

    Read update Source: Microsoft

    Build
    22631.5413
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Security update Also for Windows Server
    Zero-day

    KB5058411

    Exploited scripting and Windows driver flaws patched; mic audio fixed

    Patches exploited flaws in the scripting engine and Windows drivers, and addresses microphone muting and an eye controller app that would not launch. A restart may be needed.

    Check the newer update, KB5061977
    Known issues: 2 open
    • Noto fonts issue
    • Print to PDF might not work

    Key changes 39 CVEs · 5 changes

    • Improved Secure Boot Advanced Targeting (SBAT) and Linux Extensible Firmware Interface (EFI): Linux system detection gets improvements.
    • Improved AI components: Three AI components are updated on Copilot+ PCs.
    • Improved Servicing stack: The component that installs Windows updates gets quality improvements.

    Read update Source: Microsoft

    Build
    26100.4061
    Security
    39 fixed · 3 critical · 5 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5058405

    Scripting Engine flaw exploited; recovery errors hit virtual PCs

    An exploited Scripting Engine flaw is among the security fixes. Some virtual machines might fail to start during installation; affected IT teams should use KB5062170 instead if they have not deployed this update.

    Check the newer update, KB5058502
    Known issues: 2 open
    • Noto fonts issue
    • Recovery error with error code 0xc0000098

    Key changes 38 CVEs · 4 changes

    • Improved Windows 11, version 23H2: This build includes the improvements released for version 22H2.
    • Improved Secure Boot Advanced Targeting (SBAT) and Linux Extensible Firmware Interface (EFI): Linux systems are detected more reliably during Secure Boot checks.
    • Improved Servicing stack: The component that installs Windows updates gets quality improvements.

    Read update Source: Microsoft

    Build
    22631.5335
    Security
    38 fixed · 3 critical · 5 exploited
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Optional preview
    Preview

    KB5055627

    Recall and Click to Do arrive; Windows Studio Effects removed

    Recall, Click to Do, and improved search add new ways to find and act on content on Copilot+ PCs. The preview also removes Windows Studio Effects and lists issues with Citrix, CJK text, and Print to PDF.

    Check the newer update, KB5058411
    Known issues: 3 open
    • Noto fonts issue
    • Print to PDF might not work
    • Citrix

    Key changes 36 changes

    • New Recall (preview): Recall can help you find apps, websites, images, and documents by describing what you saw or did on your Copilot+ PC.
    • New Click to Do (preview): Click to Do lets you select something on screen and take an action, such as editing an image in Photos or Paint.
    • New Click to Do (preview): On Snapdragon-powered Copilot+ PCs, Click to Do can summarize selected text or help rewrite it.

    Read update Source: Microsoft

    Build
    26100.3915
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5055629

    File Explorer, Narrator and Widgets gain new features

    Adds new File Explorer, Narrator, Phone Link and Widgets features, and fixes several Start menu and taskbar problems. It also lists open issues affecting Citrix installations, WSUS upgrades and CJK text in some browsers.

    Check the newer update, KB5058405
    Known issues: 3 open
    • Noto fonts issue
    • Citrix
    • Windows 11, versions 24H2 might not download via Windows Server Updates Services

    Key changes 16 changes

    • New File Explorer: File Explorer Home gains curated views that make Microsoft 365 content easier to access.
    • New Narrator: Narrator gains speech recap, so you can review spoken content, follow live transcription and copy what it last said.
    • New Phone Link: The Start menu provides direct access to Phone Link features such as calls, text messages, photos and content sharing.

    Read update Source: Microsoft

    Build
    22631.5262
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Out-of-band update
    Out-of-band

    KB5058919

    Local policy audit settings show enabled logon events correctly

    A display problem could make enabled logon auditing look turned off in local policy; this out-of-band update addresses it. It also improves the component that installs Windows updates.

    Check the newer update, KB5055629
    Known issues: 3 open
    • Noto fonts issue
    • Citrix
    • Windows 11, versions 24H2 might not download via Windows Server Updates Services

    Key changes 3 changes

    • Improved Windows 11, version 23H2: This build includes the improvements released for Windows 11, version 22H2.
    • Improved Servicing stack: The component that installs Windows updates gets quality improvements.
    • Fix Local audit policies: The update addresses a display problem that made enabled logon auditing appear turned off in local policy.

    Read update Source: Microsoft

    Build
    22631.5192
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Security update Also for Windows Server
    Zero-day

    KB5055523

    Exploited CLFS flaw patched; sign-in and display issues noted

    Patches an actively exploited Windows log-file driver flaw and addresses other security issues. Some Citrix, Windows Hello, blue-screen, and CJK text issues remain listed.

    Check the newer update, KB5059087
    Known issues: 4 open
    • Noto fonts issue
    • Citrix
    • and 2 more

    Key changes 68 CVEs · 6 changes

    • New OS Security: A new inetpub folder is created to improve protection. Do not delete it, whether or not IIS is enabled.
    • Improved Daylight Saving Time (DST): The update supports Chile’s government-ordered daylight saving time change for 2025.
    • Improved Windows Hello: Windows Hello facial recognition requires a color camera to see a visible face when you sign in.

    Read update Source: Microsoft

    Build
    26100.3775
    Security
    68 fixed · 5 critical · 1 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5055528

    Actively exploited CLFS driver flaw patched; face sign-in tightened

    Fixes an actively exploited flaw in the Common Log File System driver. It also changes Windows Hello facial recognition to require a visible face.

    Check the newer update, KB5058919
    Known issues: 5 open
    • Noto fonts issue
    • Citrix
    • and 3 more

    Key changes 68 CVEs · 5 changes

    • New OS Security: A new %systemdrive%\inetpub folder is created after installation. Do not delete it, even if Internet Information Services is not enable...
    • Improved Daylight Saving Time (DST): Daylight-saving-time support is updated for the Aysen region in Chile to follow the government's 2025 change.
    • Improved Windows Hello: Facial recognition requires a color camera to see a visible face when you sign in.

    Read update Source: Microsoft

    Build
    22631.5189
    Security
    68 fixed · 5 critical · 1 exploited
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Optional preview
    Preview

    KB5053656

    Copilot+ search understands natural language; CJK text may blur

    Copilot+ PCs can search with everyday phrases, while blurry CJK text may appear in some browsers at 100% scaling. This optional preview also adds input, caption, and Settings changes.

    Check the newer update, KB5055523
    Known issues: 3 open
    • Noto fonts issue
    • Citrix
    • Blue screen exception

    Key changes 39 changes

    • New Improved Windows Search: Copilot+ PCs can find documents, photos, and settings using everyday phrases instead of exact names.
    • New Improved Windows Search: File Explorer search can show cloud photos alongside photos stored on the PC.
    • New Input: The touch keyboard now has a Gamepad layout with keys arranged for controller use.

    Read update Source: Microsoft

    Build
    26100.3624
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5053657

    Gamepad typing and PC-spec cards arrive; Suggested actions retire

    Adds gamepad typing and PC-spec cards, and changes Windows Search in the EEA. Suggested actions are being removed; blurry CJK text at 96 DPI remains a known issue.

    Check the newer update, KB5055528
    Known issues: 2 open
    • Noto fonts issue
    • Citrix

    Key changes 14 changes

    • New Input: The touch keyboard now has a Gamepad layout with button shortcuts and keys arranged to make controller navigation easier.
    • New Input: A new taskbar system tray icon makes the emoji and more panels easier to find.
    • New Settings: Settings > System > About now shows cards with key PC specifications, including processor, RAM, storage, and GPU.

    Read update Source: Microsoft

    Build
    22631.5126
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Security update Also for Windows Server
    Zero-day

    KB5053598

    Actively exploited NTFS and FAT flaws patched

    Fixes 33 vulnerabilities, including five that attackers are actively exploiting. It also carries a known Remote Desktop issue that can disconnect some sessions after 65 seconds.

    Check the newer update, KB5053656
    Known issues: 4 open
    • Citrix
    • Microsoft Copilot
    • and 2 more

    Key changes 33 CVEs · 2 changes

    • Improved Windows operating system: The update includes miscellaneous security improvements to internal Windows functionality.
    • Improved Servicing stack: The component that installs Windows updates receives quality improvements.
    • Exploited CVE-2025-24985: Windows Fast FAT File System Driver Remote Code Execution Vulnerability

    Read update Source: Microsoft

    Build
    26100.3476
    Security
    33 fixed · 3 critical · 5 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5053602

    Exploited MMC, NTFS and FAT flaws patched

    Attackers are exploiting flaws in MMC, NTFS, and FAT, alongside critical remote-code risks. Some enterprise USB printers may print random text; KB5053657 addresses that issue.

    Check the newer update, KB5053657
    Known issues: 3 open
    • Citrix
    • USB Printer Issue
    • Microsoft Copilot

    Key changes 33 CVEs · 3 changes

    • Improved Windows 11, version 23H2: Version 23H2 includes all the improvements in version 22H2.
    • Improved Internal OS functionality: Internal operating system functions get security improvements.
    • Improved Servicing stack: The component that installs Windows updates gets quality improvements.

    Read update Source: Microsoft

    Build
    22631.5039
    Security
    33 fixed · 3 critical · 5 exploited
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Optional preview
    Preview

    KB5052093

    Taskbar sharing arrives as File Explorer and audio fixes roll out

    Share files from taskbar jump lists, use new camera options, and get fixes for File Explorer, audio, scanners, and more. This optional preview also lists open Roblox, Citrix, and Remote Desktop issues.

    Check the newer update, KB5053598
    Known issues: 3 open
    • Citrix
    • Roblox
    • Remote Desktop

    Key changes 34 changes

    • New Taskbar: You can share files from an app's jump list on the taskbar.
    • New Windows Spotlight: Hover over the desktop background or select its picture icon to learn more about the image.
    • New Narrator: Narrator scan mode can jump to the start or end of an item, such as a long list.

    Read update Source: Microsoft

    Build
    26100.3323
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5052094

    Taskbar file sharing arrives alongside File Explorer fixes

    Share files from taskbar jump lists, with new Spotlight and Narrator features and several File Explorer fixes. The USB printer issue has a fix in KB5053657.

    Check the newer update, KB5053602
    Known issues: 2 open Organizations and IT administrators
    • Citrix
    • USB Printer Issue

    Key changes 18 changes

    • New Taskbar: You can share files from an app’s taskbar jump list.
    • New Windows Spotlight: You can hover over a desktop background image or select its icon to learn more about it.
    • New Lock screen: You can learn more about the lock screen image by selecting the Like icon.

    Read update Source: Microsoft

    Build
    22631.4974
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Security update Also for Windows Server
    Zero-day

    KB5051987

    Fixes 36 vulnerabilities (2 critical, 2 exploited)

    Attackers are exploiting flaws in Windows Storage and the WinSock Ancillary Function Driver. The update also covers critical code-execution flaws in LDAP and DHCP.

    Check the newer update, KB5052093
    Known issues: 4 open
    • Citrix
    • Roblox
    • and 2 more

    Key changes 36 CVEs · 2 changes

    • Improved Windows operating system: Internal Windows functions get miscellaneous security improvements.
    • Improved Servicing stack: The component that installs Windows updates gets quality improvements.
    • Exploited CVE-2025-21418: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

    Read update Source: Microsoft

    Build
    26100.3194
    Security
    36 fixed · 2 critical · 2 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5051989

    Exploited Storage and Winsock flaws patched; Hyper-V backups fixed

    Attackers are exploiting flaws in Windows Storage and the Winsock driver. The update also fixes delays that could disrupt Hyper-V backups.

    Check the newer update, KB5052094
    Known issues: 3 open
    • Citrix
    • USB Printer Issue
    • Open Secure Shell service

    Key changes 32 CVEs · 2 changes

    • Improved Servicing stack: The servicing stack, which installs Windows updates, gets quality improvements.
    • Fix Hyper-V: Hyper-V backup delays that might stop backups from running smoothly are fixed.
    • Exploited CVE-2025-21418: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

    Read update Source: Microsoft

    Build
    22631.4890
    Security
    32 fixed · 1 critical · 2 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5050092

    USB printers may print random data; File Explorer fixes arrive

    Adds File Explorer and sharing features and fixes problems with USB audio, cameras, and more. Some USB-connected dual-mode printers may print random data; KB5053657 later resolves that issue.

    Check the newer update, KB5051989

    Key changes 31 changes

    • New Windows Studio Effects: On devices with an NPU, an icon appears when an app uses Windows Studio Effects. Select it to open Studio Effects in Quick Settings, or...
    • New Fonts: The new simplified Chinese font Simsun-ExtG includes the Biangbiang noodles character. Some apps might not display its new extension ch...
    • New File Explorer: The New Folder command appears when you right-click items in File Explorer’s left pane.

    Read update Source: Microsoft

    Build
    22631.4830
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Optional preview
    Preview

    KB5050094

    File Explorer gains tab restore; mouse and audio fixes arrive

    File Explorer can restore open tabs, and fixes address mouse, audio, and Remote Desktop problems. This optional preview also adds a Chinese font and changes taskbar previews.

    Check the newer update, KB5051987
    Known issues: 4 open
    • Citrix
    • Roblox
    • and 2 more

    Key changes 32 changes

    • New Fonts: A new simplified Chinese font includes the Biangbiang noodles character. Some apps might not display its new characters yet.
    • New File Explorer: Right-clicking items in the left pane now shows a New Folder command.
    • New File Explorer: File Explorer restores open tabs in each window when you turn on the option to restore folder windows at sign-in.

    Read update Source: Microsoft

    Build
    26100.3037
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Security update Also for Windows Server
    Zero-day

    KB5050009

    Three exploited Hyper-V kernel integration flaws patched

    Three actively exploited Hyper-V flaws make this security update important to install. It also expands the vulnerable-driver blocklist and documents an open Roblox issue on Arm devices.

    Check the newer update, KB5050094
    Known issues: 1 open
    • We’re aware of an issue where players on Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

    Key changes 121 CVEs · 2 changes

    • Improved Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b): Windows adds more at-risk drivers to its blocklist to help protect against Bring Your Own Vulnerable Driver attacks.
    • Improved Servicing stack: The component that installs Windows updates receives quality improvements to help devices receive and install updates reliably.
    • Exploited CVE-2025-21333: Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability

    Read update Source: Microsoft

    Build
    26100.2894
    Security
    121 fixed · 6 critical · 3 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5050021

    Exploited Hyper-V flaws and critical remote-code vulnerabilities addressed

    Addresses 121 security vulnerabilities, including three exploited Hyper-V elevation-of-privilege flaws and five critical vulnerabilities. It also adds vulnerable drivers to the Windows kernel blocklist.

    Check the newer update, KB5050092
    Support for Windows 11, version 23H2 Enterprise and Education editions ends November 10, 2026.

    Key changes 121 CVEs · 2 changes

    • Improved Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b): The blocklist includes more drivers that could put devices at risk from attacks using vulnerable drivers.
    • Improved Servicing stack: The component that installs Windows updates receives quality improvements.
    • Exploited CVE-2025-21333: Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability

    Read update Source: Microsoft

    Build
    22631.4751
    Security
    121 fixed · 5 critical · 3 exploited
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Security update Also for Windows Server
    Zero-day

    KB5048667

    Exploited CLFS driver flaw addressed; Arm Roblox issue remains

    The update addresses 47 vulnerabilities, including an exploited flaw in the Common Log File System driver. Players on Arm devices still can’t download or play Roblox from the Microsoft Store.

    Check the newer update, KB5050009
    Known issues: 1 open
    • We’re aware of an issue where players on Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

    Key changes 47 CVEs · 2 changes

    • Improved Windows operating system: Includes miscellaneous security improvements to internal Windows functionality.
    • Improved Servicing stack: The component that installs Windows updates receives quality improvements.
    • Exploited CVE-2024-49138: Windows Common Log File System Driver Elevation of Privilege Vulnerability

    Read update Source: Microsoft

    Build
    26100.2605
    Security
    47 fixed · 10 critical · 1 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5048685

    Exploited log-file driver flaw patched among 10 critical fixes

    The update patches an actively exploited Windows Common Log File System Driver flaw and addresses 46 vulnerabilities, including 10 rated critical.

    Check the newer update, KB5050021

    Key changes 46 CVEs · 1 change

    • Improved Servicing stack: The component that installs Windows updates receives reliability improvements to help devices receive and install updates.
    • Exploited CVE-2024-49138: Windows Common Log File System Driver Elevation of Privilege Vulnerability
    • Critical CVE-2024-49112: Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability

    Read update Source: Microsoft

    Build
    22631.4602
    Security
    46 fixed · 10 critical · 1 exploited
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Optional preview
    Preview

    KB5046740

    Display, clipboard and WSL fixes; new taskbar and sharing options

    Adds new taskbar, Start menu and File Explorer options, and fixes issues affecting displays, clipboard history, WSL and more.

    Check the newer update, KB5050009
    Known issues: 1 open
    • We’re aware of an issue where players on Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

    Key changes 35 changes

    • New Taskbar: The system tray can show a shortened date and time. When Do not disturb is on, the notification bell might be hidden; click the date an...
    • New Start menu: Right-clicking a pinned app opens its jump list when that app has one.
    • New Touchscreen: A new Settings section lets you turn off the left or right screen-edge touch gesture.

    Read update Source: Microsoft

    Build
    26100.2454
    Restart
    Required