Skip to the content
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 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5046732

    File Explorer sharing reaches Android; Bluetooth audio fixed

    Adds Android sharing in File Explorer and new input settings, while fixing several taskbar, File Explorer, Bluetooth audio, and other issues. It applies to Windows 11 23H2 and 22H2 Enterprise and Education editions.

    Check the newer update, KB5048685

    Key changes 22 changes

    • New Settings: Tailored Experiences is renamed Personalized offers in the out-of-box experience. You can turn off the setting that sends device data t...
    • New Taskbar: The system tray can show a shortened date and time. With Do not disturb on, the notification bell might be hidden; you can change the d...
    • New Input Method Editor (IME): The IME toolbar hides when an app is full screen while you type Chinese or Japanese characters.

    Read update Source: Microsoft

    Build
    22631.4541
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Security update Also for Windows Server
    Zero-day

    KB5046617

    Exploited Task Scheduler and NTLM flaws patched

    Fixes 30 security vulnerabilities, including two exploited flaws and a critical VMSwitch flaw. It also fixes Task Manager group counts, Dev Drive access, and some IPv4 connection failures.

    Check the newer update, KB5046740
    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 30 CVEs · 4 changes

    • Improved Servicing stack: The component that installs Windows updates receives quality improvements.
    • Fix Task Manager: The Processes tab shows the correct group count when you turn on “Group by type.”
    • Fix Windows Subsystem for Linux (WSL): You can access your Dev Drive again.

    Read update Source: Microsoft

    Build
    26100.2314
    Security
    30 fixed · 1 critical · 2 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5046633

    Exploited Task Scheduler and NTLM flaws patched

    Fixes 34 vulnerabilities, including the actively exploited Task Scheduler flaw CVE-2024-49039 and NTLM hash disclosure flaw CVE-2024-43451, plus critical VMSwitch flaw CVE-2024-43625.

    Check the newer update, KB5046732

    Key changes 34 CVEs · 3 changes

    • Improved Windows 11, version 23H2: This build includes all the improvements in Windows 11, version 22H2.
    • Improved Windows 11, version 22H2: Internal Windows functionality receives miscellaneous security improvements.
    • Improved Servicing stack: The component that installs Windows updates receives quality improvements to help devices receive and install updates.

    Read update Source: Microsoft

    Build
    22631.4460
    Security
    34 fixed · 1 critical · 2 exploited
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Optional preview
    Preview

    KB5044384

    Window switching and scanner detection fixed

    Fixes brief black screens when switching between some windows and scanner detection problems. It also adds new Narrator, Start menu, and Copilot key options.

    Check the newer update, KB5046740
    Known issues: 2 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.
    • After installing this update, users will encounter an issue where the number of Apps, Background Processes, and Windows Processes in Task Manager display a count of zero, despite having active applic…

    Key changes 20 changes

    • New Notifications: You can turn off suggestions to disable notifications from individual apps.
    • New Narrator: A new Narrator shortcut copies the last thing Narrator said to the clipboard.
    • New Narrator: Narrator can automatically read email messages in the new Outlook.

    Read update Source: Microsoft

    Build
    26100.2161
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5044380

    Notification controls and Narrator features added; battery drain fixed

    Adds notification and Narrator features and fixes excess battery use in Modern Standby, plus several other issues. The OpenSSH service issue listed on the page is resolved by KB5052094.

    Check the newer update, KB5046633

    Key changes 18 changes

    • New Notifications: You can turn off suggestions to disable notifications from certain apps, either from a notification or in Settings.
    • New Start menu: The “All apps” section is renamed “All.”
    • New Narrator: A new shortcut copies what Narrator last spoke to the clipboard.

    Read update Source: Microsoft

    Build
    22631.4391
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Security update Also for Windows Server
    Zero-day

    KB5044284

    Exploited MMC and MSHTML flaws patched; gateway disconnects fixed

    Fixes 64 vulnerabilities, including two actively exploited flaws, and stops Remote Desktop Gateway Service from disconnecting clients in a specified configuration.

    Check the newer update, KB5044384
    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 64 CVEs · 2 changes

    • Improved Servicing stack: The component that installs Windows updates gets quality improvements.
    • Fix Remote Desktop Gateway Service: Clients no longer disconnect when the Remote Desktop Gateway Service stops responding during connections.
    • Exploited CVE-2024-43572: Microsoft Management Console Remote Code Execution Vulnerability

    Read update Source: Microsoft

    Build
    26100.2033
    Security
    64 fixed · 1 critical · 2 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5044285

    Exploited MMC and MSHTML flaws patched; 22H2 restart failures fixed

    The update patches exploited MMC and MSHTML flaws and fixes repeated restarts, hangs, blue or green screens, and BitLocker recovery on Windows 11 version 22H2.

    Check the newer update, KB5044380
    Windows 11 version 22H2 Home and Pro reached end of service on October 8, 2024. Enterprise and Education editions continue to be supported; Home and Pro users need to update to the latest version to keep receiving updates.

    Key changes 64 CVEs · 4 changes

    • Improved Windows security: Addresses security issues in Windows.
    • Improved Windows 11 version 23H2: This build includes the improvements listed for Windows 11 version 22H2.
    • Improved Servicing stack: The component that installs Windows updates gets quality improvements to help devices receive and install updates reliably.

    Read update Source: Microsoft

    Build
    22631.4317
    Security
    64 fixed · 1 critical · 2 exploited
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Out-of-band update
    Out-of-band

    KB5043178

    Energy-saving controls arrive; Roblox remains unavailable on Arm

    Adds energy-saving and interface features and fixes several setup, accessibility, and app issues. Roblox still cannot be downloaded from the Microsoft Store on Arm devices, but players can get it directly from Roblox.com.

    Check the newer update, KB5044284
    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 16 changes

    • New Settings: An energy recommendation can suggest turning off HDR to conserve energy on devices with HDR displays.
    • New Battery life: When the battery reaches 20%, a notification says that Windows is helping reduce power use if Energy Saver is set to “Always On.”
    • New Start menu: The account manager adds a Sign out option and a list of other users to make switching accounts easier.

    Read update Source: Microsoft

    Build
    26100.1882
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5043145

    IE mode freezes and repeated email PIN prompts addressed

    Addresses several problems, including Edge becoming unresponsive in IE mode and repeated PIN prompts for encrypted email. Some devices may restart repeatedly or show blue or green screens; KB5044285 resolves that issue.

    Check the newer update, KB5044285
    Windows 11, version 22H2 Home and Pro editions reach end of service on October 8, 2024; Microsoft recommends updating to the latest version to continue receiving updates.

    Key changes 14 changes

    • New Taskbar: You can share local files directly from search results in the taskbar search box.
    • New Lock screen: When media is playing, its controls appear in the lower center of the lock screen.
    • New Start menu: The account manager in Start now has a Sign out command. Select the ellipses (...) to see other users and switch accounts.

    Read update Source: Microsoft

    Build
    22631.4249
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Security update Also for Windows Server
    Zero-day

    KB5043080

    Closes exploited MSHTML flaw; addresses Remote Desktop hangs

    Closes an exploited Windows MSHTML spoofing flaw and addresses Task Manager color problems and Remote Desktop Services hangs. Roblox downloads through the Microsoft Store remain unavailable on Arm devices.

    Check the newer update, KB5043178
    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 29 CVEs · 4 changes

    • Improved Windows Installer: When Windows Installer repairs an application, User Account Control (UAC) now prompts for credentials. Automation scripts must be updat...
    • Improved Servicing stack: The component that installs Windows updates receives quality improvements to help devices receive and install updates.
    • Fix Task Manager: The update addresses incorrect graph colors on Task Manager’s Performance page when dark mode is on.

    Read update Source: Microsoft

    Build
    26100.1742
    Security
    29 fixed · 1 critical · 3 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5043076

    Exploited MSHTML spoofing flaw and Installer repair change

    Fixes 31 security vulnerabilities, including three that attackers are exploiting, and changes how Windows Installer repairs prompt for administrator credentials. Linux might also fail to start on some Windows-and-Linux dual-boot devices.

    Check the newer update, KB5043145
    Windows 11, version 22H2 Home and Pro editions reach end of service on October 8, 2024. Microsoft recommends updating to the latest Windows version to continue receiving updates.

    Key changes 31 CVEs · 3 changes

    • Improved Windows Installer: When Windows Installer repairs an application, a prompt now asks for administrator credentials.
    • Improved Dual boot of Windows and Linux: Linux might fail to start on a device set up to dual boot Windows and Linux.
    • Improved Servicing stack: The package includes an update to the component that installs Windows updates.

    Read update Source: Microsoft

    Build
    22631.4169
    Security
    31 fixed · 1 critical · 3 exploited
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Out-of-band update
    Out-of-band

    KB5041865

    Widgets change, Android sharing arrives, and Explorer issues are fixed

    Adds Android sharing and improves Narrator, battery life, and File Explorer. Some Widgets Board widgets are removed or temporarily affected, and Roblox players on Arm devices need a workaround.

    Check the newer update, KB5043080
    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 19 changes

    • New Windows Share: You can share content to an Android device from the Windows Share window after pairing it with your PC.
    • New OpenSSH: A confirmation prompt appears when you turn on OpenSSH using Server Manager.
    • Improved Widgets Board: Widgets Board gets security and API changes for widgets and feeds in EEA regions.

    Read update Source: Microsoft

    Build
    26100.1591
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5041587

    Android sharing and File Explorer fixes; Linux dual-boot issue noted

    Adds Android sharing from Windows Share and fixes several File Explorer problems. A separate Linux dual-boot issue is linked to the August 2024 Windows security update’s SBAT setting.

    Check the newer update, KB5043076
    Windows 11 version 22H2 Home and Pro receive only security updates until October 8, 2024; Microsoft recommends upgrading to continue receiving non-security updates. Enterprise and Education support continues after that date.
    Known issues: 1 open
    • After installing this security update, you might face issues with booting Linux if you have enabled the dual-boot setup for Windows and Linux in your device.

    Key changes 22 changes

    • New Windows Share: You can share content from Windows to a paired Android device.
    • Improved Narrator: Narrator scan mode responds faster, especially when you read large documents in Microsoft Edge.
    • Improved Voice access: Voice access lets you dictate spelled characters faster and gives you more editing options for selecting, deleting, and moving through...

    Read update Source: Microsoft

    Build
    22631.4112
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Security update
    Zero-day

    KB5041571

    TCP/IP remote-code flaw patched; Roblox blocked on Arm

    Fixes 45 vulnerabilities, including four being exploited and a critical TCP/IP flaw. Arm users cannot download or play Roblox from the Microsoft Store, but can get it from Roblox.com.

    Check the newer update, KB5041865
    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 45 CVEs · 5 changes

    • Improved Lock screen: The “Use my Windows user account” checkbox is no longer available when connecting to Wi-Fi from the lock screen.
    • Improved Secure Boot Advanced Targeting (SBAT) and Linux Extensible Firmware Interface (EFI): Windows systems block vulnerable Linux EFI bootloaders. This SBAT update does not apply to systems that dual-boot Windows and Linux. Ol...
    • Improved Domain Name System (DNS): DNS server security is hardened. Outdated domain configurations might cause SERVFAIL errors or timeouts.

    Read update Source: Microsoft

    Build
    26100.1457
    Security
    45 fixed · 3 critical · 4 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5041585

    Scripting Engine flaw exploited; Linux dual-boot may fail

    The update fixes 43 security vulnerabilities, including an exploited Scripting Engine flaw, and changes that can stop some Windows/Linux dual-boot PCs from starting Linux.

    Check the newer update, KB5041587
    Windows 11 version 22H2 Home and Pro editions reach end of service on October 8, 2024; Microsoft recommends updating to the latest Windows version to continue receiving updates. Enterprise and Education editions continue to be supported after that date.
    Known issues: 1 open
    • After installing this security update, you might face issues with booting Linux if you have enabled the dual-boot setup for Windows and Linux in your device.

    Key changes 43 CVEs · 5 changes

    • Improved Lock screen: The “Use my Windows user account” checkbox is no longer available when connecting to Wi-Fi from the lock screen.
    • Improved Secure Boot Advanced Targeting (SBAT) and Linux Extensible Firmware Interface (EFI): The update blocks vulnerable Linux bootloaders on Windows systems. Older Linux ISO images might not boot afterward.
    • Improved Servicing stack: Includes improvements to the component that installs Windows updates.

    Read update Source: Microsoft

    Build
    22631.4037
    Security
    43 fixed · 3 critical · 4 exploited
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Out-of-band update
    Out-of-band

    KB5040529

    Roblox Store downloads remain unavailable on Arm; six emoji added

    Adds six emoji and new sharing, account, and backup features. Players on Arm devices still cannot get Roblox through the Microsoft Store, but can download it directly from Roblox.com.

    Check the newer update, KB5041571
    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 36 changes

    • New Emoji: Adds six Emoji 15.1 designs, including horizontal and vertical head shakes, a phoenix, a lime, a brown mushroom, and a broken chain.
    • New Start menu: A new account manager on the Start menu shows Microsoft account benefits and makes account settings easier to manage.
    • New Start menu: You can drag apps from the Start menu’s pinned section to the taskbar.

    Read update Source: Microsoft

    Build
    26100.1301
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5040527

    File Explorer fixes and new taskbar keyboard controls

    Adds taskbar and Start menu features and fixes several File Explorer problems, including hangs and missing search results. It also includes fixes for Windows 11, version 22H2 Enterprise and Education.

    Check the newer update, KB5041585
    Windows 11, version 22H2 Home and Pro receive only security updates until October 8, 2024; update to the latest version to keep receiving non-security updates.

    Key changes 33 changes

    • New Notification for Windows Share in China: For nearby sharing in China, Windows asks before turning on Wi-Fi and Bluetooth if they are off.
    • New Start menu: You can drag an app from the Pinned section of Start and pin it to the taskbar.
    • New Taskbar: With the taskbar focused, you can press a letter to move to an app or window whose name starts with it. Home and End move focus to the...

    Read update Source: Microsoft

    Build
    22631.3958
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Security update

    KB5040435

    BitLocker validation changes; shortcut icons need a policy

    This security update changes BitLocker’s default Secure Boot validation profile and requires a policy for remote shortcut icons. Roblox still cannot be downloaded or played through the Microsoft Store on Arm devices.

    Check the newer update, KB5040529
    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 1 CVE · 4 changes

    • Improved BitLocker: The default Secure Boot validation profile now includes an additional measurement, PCR 4, alongside PCR 7 and 11.
    • Improved File shortcut icons: Remote shortcut icons on the Start menu, Windows desktop, and taskbar will fail to render after installing this update unless the requi...
    • Improved Servicing stack: The included servicing stack update improves the component that installs Windows updates.

    Read update Source: Microsoft

    Build
    26100.1150
    Security
    1 vulnerability fixed
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5040442

    Exploited Hyper-V and MSHTML flaws patched

    Fixes 81 vulnerabilities, including one critical flaw and exploited flaws in Hyper-V and MSHTML. It also addresses taskbar and startup problems and changes the Secure Boot validation profile.

    Check the newer update, KB5040527
    Windows 11 version 22H2 Home and Pro editions receive only security updates until October 8, 2024. To continue receiving security and non-security updates after that date, Microsoft recommends updating to the latest Windows version.

    Key changes 81 CVEs · 7 changes

    • Improved BitLocker: The default Secure Boot validation profile now includes an additional platform measurement.
    • Improved File shortcut icons: Without the required policy, icons on the Start menu, Windows desktop, and taskbar will fail to render after this update or later updat...
    • Improved Servicing stack: The servicing stack receives quality improvements to help devices reliably receive and install Microsoft updates.

    Read update Source: Microsoft

    Build
    22631.3880
    Security
    81 fixed · 1 critical · 2 exploited
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Out-of-band update
    Out-of-band

    KB5039304

    Roblox Store downloads fail on Arm; DWM and IME issues fixed

    Fixes several Windows issues, including problems with WDAC, DWM.exe, and the IME candidate list. Players on Arm devices cannot download or play Roblox through the Microsoft Store; they can get it directly from Roblox.com.

    Check the newer update, KB5040435
    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 7 changes

    • Improved Country and Operator Settings Asset (COSA): Mobile operator profiles are brought up to date for certain operators.
    • Improved Servicing stack: The component that installs Windows updates receives quality improvements.
    • Fix Windows Defender Application Control (WDAC): Some apps’ policies can be verified again.

    Read update Source: Microsoft

    Build
    26100.1000
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5039302

    New archive tools and taskbar changes; startup issues reported

    Adds archive tools to File Explorer and several taskbar and Settings changes. Some devices might fail to start, and taskbar issues are likely on Windows N or devices without Media Features.

    Check the newer update, KB5040442

    Key changes 29 changes

    • New Settings: A Game Pass recommendation card appears on the Settings home page for eligible players.
    • New Taskbar: The Show desktop button is back on the taskbar by default.
    • New File Explorer: You can create 7-Zip and TAR archives from File Explorer's context menu, with more formats and options in a compression wizard.

    Read update Source: Microsoft

    Build
    22631.3810
    Restart
    Required
  • Windows 11 24H2 Windows 11 24H2 Out-of-band update
    Out-of-band

    KB5039239

    Bluetooth volume and Arm game issues addressed; Copilot pinned

    Addresses Bluetooth volume and Arm64 gaming problems, and pins Copilot to the taskbar as an app. Roblox downloads through the Microsoft Store remain unavailable on Arm devices, with a direct-download workaround.

    Check the newer update, KB5039304
    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 6 changes

    • New Copilot: Copilot is pinned to the taskbar and behaves like an app, so you can resize, move, and snap its window.
    • Improved Windows Management Instrumentation Command line (WMIC): WMIC is disabled by default on new installations, but enabled by default when upgrading to version 24H2.
    • Improved File Explorer: Files and folders from untrusted locations get a Mark of the Web tag. This changes the LastWriteTime timestamp and might affect scenari...

    Read update Source: Microsoft

    Build
    26100.863
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5039212

    Exploited Mark of the Web bypass and critical MSMQ flaw addressed

    The update fixes 29 vulnerabilities, including a critical MSMQ remote-code-execution flaw and an actively exploited Mark of the Web security-feature bypass. It also addresses taskbar glitches and several system issues.

    Check the newer update, KB5039302

    Key changes 29 CVEs · 7 changes

    • Improved File Explorer: Files and folders from untrusted locations receive a Mark of the Web tag. The changed timestamp might affect some file-copy scenarios.
    • Improved Servicing stack: The component that installs Windows updates receives quality improvements to help devices receive and install updates reliably.
    • Fix Taskbar: The taskbar might briefly glitch, stop responding, or disappear and reappear; this update addresses the issue.

    Read update Source: Microsoft

    Build
    22631.3737
    Security
    29 fixed · 1 critical · 1 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5037853

    File sharing gains QR codes; Explorer gets breadcrumb dragging

    Adds QR-code sharing and new File Explorer controls, and addresses problems including slow startup from network folders and unavailable Bluetooth headset controls.

    Check the newer update, KB5039212

    Key changes 32 changes

    • New Windows share window: Clicking outside the Windows share window no longer closes it; use the close button in its upper-right corner.
    • New File Explorer: You can drag files between location breadcrumbs in the address bar.
    • New Settings: A Linked devices page lets you manage PCs and Xbox consoles. It appears on Home and Pro editions when you sign in with a Microsoft acco...

    Read update Source: Microsoft

    Build
    22631.3672
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5037771

    Exploited MSHTML and DWM flaws patched; VPN failures addressed

    The update patches 45 vulnerabilities, including two actively exploited flaws in MSHTML and DWM Core Library. It also addresses VPN connection failures and slow SMB transfers.

    Check the newer update, KB5037853

    Key changes 45 CVEs · 5 changes

    • Improved Servicing stack: The component that installs Windows updates receives quality improvements.
    • Fix VPN: VPN connection failures after installing the update dated April 9, 2024, or later are addressed.
    • Fix Domain controllers: NTLM authentication traffic might increase on domain controllers; this issue is addressed.

    Read update Source: Microsoft

    Build
    22631.3593
    Security
    45 vulnerabilities fixed · 2 actively exploited
    Restart
    Required