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Windows 11 23H2

Windows 11, version 23H2

Every published release for Windows 11, version 23H2, newest first: what each update changes, whether to install it and any confirmed known issues.

Latest
KB5136483 Nov 13, 2026
Build
22631.7714
Released
Oct 31, 2023
Enterprise and Education
no longer updated since Nov 10, 2026
Known issues
23 open

Latest update

  • KB5136483 Released Nov 13, 2026
    Build 22631.7714

Build history

  • Windows 11 23H2 Windows 11 23H2 Out-of-band update
    Out-of-band

    KB5136483

    Windows licensing and activation failures fixed

    Some Windows licensing and activation tasks failed with error 0x80041008; the issue is fixed for affected organizations.

    Key changes 2 changes

    • Improved Servicing stack: The component that installs Windows updates gets quality improvements to help devices receive and install updates reliably.
    • Fix Licensing and Activation: Some organizations can now run Windows licensing and activation tasks that previously failed with error 0x80041008.
    Build
    22631.7714
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Final update for this version Updated

    KB5131087

    NTLM signing defaults for non-anonymous connections

    NTLM clients offer message signing by default for non-anonymous connections, helping reduce relay risks. The update also fixes printer setup and a Remote Desktop policy issue.

    Check the newer update, KB5136483
    This is the last update for version 23H2 Enterprise and Education. Those editions will no longer receive monthly security updates; move eligible devices to a supported Windows 11 version.

    Key changes 575 CVEs · 7 changes

    • Improved Secure Boot: More eligible devices can receive newer Secure Boot certificates automatically over the coming months.
    • Improved Security: NTLM connections are better protected against relay attacks.
    • Improved Date and Time: Cuba's clocks follow its extended daylight saving schedule for 2026–2027.
    Build
    22631.7711
    Security
    575 fixed · 31 critical
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day Updated

    KB5126653

    Exploited Windows Shell bypass flaw addressed; File History issue addressed

    An actively exploited Windows Shell security-feature bypass is addressed. The update also addresses File History backup and restore failures.

    Check the newer update, KB5134130
    Windows 11 23H2 Enterprise and Education reach end of updates on November 10, 2026. The November security update is their last.

    Key changes 1,021 CVEs · 6 changes

    • New Date and Time: A new Manitoba time zone is available.
    • Improved Secure Boot: Updated Secure Boot certificates continue to reach eligible devices through Windows Update.
    • Improved Date and Time: British Columbia and Alberta get permanent daylight saving time support starting in November 2026.
    Build
    22631.7652
    Security
    1,021 fixed · 25 critical · 1 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Out-of-band update
    Out-of-band

    KB5129242

    Remote Desktop failures and Linux shared-folder access fixed

    Addresses Remote Desktop instability, restores Plan9 host-folder access to Linux VMs, and resolves only 8-channel or 3D-mode symptoms for affected USB audio devices. Other USB audio symptoms remain.

    Check the newer update, KB5126653
    Windows 11, version 23H2, Enterprise and Education editions reach the end of updates on November 10, 2026.

    Key changes 4 changes

    • Improved Servicing stack: The component that installs Windows updates receives quality improvements.
    • Fix Remote Desktop Services: In affected environments, Remote Desktop connections and sign-ins might fail, servers might become unresponsive during Remote Desktop c...
    • Fix Hyper-V: Folders shared from a Windows host might now appear and be accessible in Linux virtual machines.
    Build
    22631.7584
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day Updated

    KB5122880

    An exploited Windows Update flaw gets an access fix

    An actively exploited Windows Update flaw could let attackers gain higher access. The update also addresses remote audio problems and adjusts Morocco's time zone.

    Check the newer update, KB5129242
    Windows 11, version 23H2, Enterprise and Education editions stop receiving updates on November 10, 2026. Upgrade to a newer Windows version to stay protected.

    Key changes 614 CVEs · 6 changes

    • Improved Secure Boot: More eligible devices can automatically receive new Secure Boot certificates. Delivery continues over the coming months.
    • Improved Date and Time: Morocco's local time reflects its move to UTC+00:00, effective September 20, 2026.
    • Improved Cellular: Cellular settings get updated profiles for Telavox and Swisscom.
    Build
    22631.7582
    Security
    614 fixed · 53 critical · 1 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day Updated

    KB5120240

    WinSock driver flaw patched; File History backups improve

    A flaw in the WinSock support driver listed as exploited is addressed, and File History backups to network shares become more reliable.

    Check the newer update, KB5122880
    Windows 11 version 23H2 Enterprise and Education reach the end of updates on November 10, 2026. They will no longer receive security and preview updates or other support.

    Key changes 170 CVEs · 5 changes

    • New Emoji Panel: The emoji panel now supports GIPHY after Google's Tenor API was deprecated.
    • Improved Connectivity: Mobile settings for SolNet-Mobile are refreshed to support the operator's latest settings.
    • Improved Device Management: The update helps managed devices keep working normally when an MDM certificate expires.
    Build
    22631.7517
    Security
    170 fixed · 7 critical · 1 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day Updated

    KB5099414

    Windows Shell spoofing flaw exploited; RDP adds SHA-2 support

    An actively exploited Windows Shell spoofing flaw is addressed. Trusted Remote Desktop publishers can now use SHA-2 certificate thumbprints.

    Check the newer update, KB5120240
    Windows 11 version 23H2 Enterprise and Education reaches the end of updates on November 10, 2026. Plan to upgrade before then.

    Key changes 20 CVEs · 10 changes

    • New Remote Desktop (RDP) Security: Trusted Remote Desktop publishers can use SHA-2 certificate thumbprints. SHA-1 remains for backward compatibility but is planned for re...
    • Improved Secure Boot: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. More eligible devices can receive newer...
    • Improved Country and Operator Settings Asset (COSA): Profiles for certain mobile operators are brought up to date.
    Build
    22631.7376
    Security
    20 fixed · 1 critical · 1 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update

    KB5093998

    Fixes 158 vulnerabilities (22 critical)

    Critical code-execution flaws affect the Windows Kernel, DNS Client, Remote Desktop Client and other components. File Explorer search and Secure Boot also change.

    Check the newer update, KB5099414
    Windows 11, version 23H2 Enterprise and Education reaches end of updates on November 10, 2026. These editions will then stop receiving security and other updates.
    Known issues: 2 open
    • Microsoft Office applications might fail to open from certain third-party apps
    • OneDrive shortcut in File Explorer might not work in administrator mode

    Key changes 158 CVEs · 9 changes

    • New Secure Boot: A new setting lets organizations limit Secure Boot data sent to Microsoft.
    • Improved Secure Boot: More eligible devices can receive new Secure Boot certificates automatically, in a phased rollout.
    • Improved Country and Operator Settings Asset (COSA): Profiles for some mobile operators are brought up to date.
    Build
    22631.7219
    Security
    158 fixed · 22 critical
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update

    KB5087420

    Critical DNS Client flaw patched; BitLocker recovery prompt remains

    Critical vulnerabilities include a DNS Client remote code execution flaw. Some managed PCs might ask for a BitLocker recovery key after the first restart.

    Check the newer update, KB5093998
    Windows 11, version 23H2 Enterprise and Education editions reach the end of updates on November 10, 2026.
    Known issues: 1 open Organizations and IT administrators
    • Devices with an unrecommended BitLocker Group Policy configuration might be required to enter their BitLocker recovery key

    Key changes 56 CVEs · 7 changes

    • New Secure Boot: Eligible devices get a folder with example scripts for organizations that manage Secure Boot updates.
    • New Enterprise State Roaming (ESR): IT administrators can manage Enterprise State Roaming through Windows Backup for Organizations policies.
    • Improved Secure Boot: More eligible devices can receive new Secure Boot certificates through a phased rollout.
    Build
    22631.7079
    Security
    56 fixed · 5 critical
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update

    KB5082052

    Remote Desktop shows connection settings; Microsoft sign-in fixed

    Remote Desktop shows requested settings before connecting, and a Microsoft account sign-in error is fixed. The update also adds protections against vulnerable kernel drivers.

    Check the newer update, KB5087420
    Secure Boot certificates have started expiring. Devices without newer certificates continue to start and receive Windows updates; version 23H2 Enterprise and Education editions receive updates through November 10, 2026.
    Known issues: 2 open
    • Devices with an unrecommended BitLocker Group Policy configuration might be required to enter their BitLocker recovery key
    • Warnings related to Remote Desktop might not display correctly

    Key changes 114 CVEs · 8 changes

    • New Secure Boot: Secure Boot certificate update status may appear in the Windows Security app.
    • Improved Secure Boot: More eligible devices can receive new Secure Boot certificates automatically, in a controlled, phased rollout.
    • Improved Networking: SMB compression over QUIC completes more consistently, reducing the chance of timeouts.
    Build
    22631.6936
    Security
    114 fixed · 2 critical
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update

    KB5078883

    Secure Boot coverage expands; File History handles more filenames

    The update addresses 41 Important-severity vulnerabilities and broadens the rollout of new Secure Boot certificates. It also improves File History backups and stability for some graphics configurations.

    Check the newer update, KB5082052
    Windows 11, version 23H2 Enterprise and Education editions reach end of support on November 10, 2026.

    Key changes 41 CVEs · 8 changes

    • New Secure Boot: Two new PowerShell features help you check Secure Boot keys and certificates and whether your device follows the latest Secure Boot pol...
    • Improved Secure Boot: More eligible devices can receive new Secure Boot certificates automatically, through a controlled, phased rollout.
    • Improved File History: File History in Control Panel now backs up files with names that include Chinese characters and Private Use Area characters.
    Build
    22631.6783
    Security
    41 vulnerabilities fixed
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5075941

    Exploited Shell and MSHTML security bypasses addressed

    Addresses 27 vulnerabilities, including exploited Windows Shell and MSHTML security feature bypasses, and fixes several Windows 11 23H2 issues. It also updates Secure Boot components and certificate rollout data.

    Check the newer update, KB5078883
    Secure Boot certificates used by most Windows devices began expiring in June 2026. Devices without newer certificates continue to start and operate normally, and Windows updates continue to install.

    Key changes 27 CVEs · 9 changes

    • Improved Secure Boot: For devices that already have the Windows UEFI CA 2023 certificate, the boot manager switches to a 2023-signed boot file.
    • Improved Fonts & Display: Chinese fonts support the GB18030-2022A standard for character coverage and display.
    • Improved Secure Boot: Windows quality updates include data to help determine which devices are ready to receive new Secure Boot certificates. Devices receive...
    Build
    22631.6649
    Security
    27 vulnerabilities fixed · 5 actively exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Out-of-band update
    Out-of-band

    KB5078132

    Cloud-file errors and OneDrive-hosted Outlook hangs fixed

    Fixes file and Outlook problems affecting some cloud-storage users after the January 13 update. Devices with Virtual Secure Mode enabled might still restart instead of shutting down or hibernating; KB5075941 resolves that issue.

    Check the newer update, KB5075941
    Support for Windows 11, version 23H2, Enterprise and Education editions ends November 10, 2026.
    Known issues: 1 open
    • Some devices with Virtual Secure Mode enabled might fail to shut down or hibernate

    Key changes 3 changes

    • Improved Includes security fixes and improvements from the January 13 update, KB5073455, and the January 17 update, KB5077797.
    • Improved Servicing stack: The component that installs Windows updates receives quality improvements.
    • Fix File System: Some apps no longer become unresponsive or show unexpected errors when opening or saving files in cloud storage such as OneDrive or Dro...
    Build
    22631.6495
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Out-of-band update
    Out-of-band

    KB5077797

    Remote Desktop sign-in failures and shutdown restarts get fixes

    Some Remote Desktop sign-ins fail, and some Secure Launch devices restart instead of shutting down or hibernating. This out-of-band update addresses both problems.

    Check the newer update, KB5078132
    Windows 11, version 23H2, Enterprise and Education editions reach the end of updates on November 10, 2026.
    Known issues: 2 open
    • Some devices with Virtual Secure Mode enabled might fail to shut down or hibernate
    • Apps might become unresponsive when saving files to cloud-based storage

    Key changes 3 changes

    • Improved Servicing stack: The component that installs Windows updates gets a quality improvement.
    • Fix Remote Desktop: Some users had sign-in failures when connecting through Remote Desktop. This update fixes the issue.
    • Fix Power & Battery: Some devices with Secure Launch enabled restarted instead of shutting down or entering hibernation. This update fixes the issue.
    Build
    22631.6494
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5073455

    Exploited Desktop Window Manager flaw patched; RDP issues addressed

    An actively exploited Desktop Window Manager flaw gets a security fix. The update also removes several modem drivers and addresses Remote Desktop connection failures.

    Check the newer update, KB5077797
    Windows 11, version 23H2 Enterprise and Education editions reach the end of updates on November 10, 2026. Secure Boot certificates used by most Windows devices began expiring in June 2026; devices without new certificates still start and receive standard updates.
    Known issues: 3 open
    • Apps might become unresponsive when saving files to cloud-based storage
    • Connection and authentication failures in Azure Virtual Desktop and Windows 365
    • Secure Launch-capable devices might fail to shut down or hibernate

    Key changes 80 CVEs · 7 changes

    • Improved Credentials autofill: Some credential prompts no longer accept input from virtual keyboards during remote support or automated sign-in.
    • Improved Secure Boot: Windows can deliver new Secure Boot certificates in stages to eligible devices.
    • Improved Servicing stack: The update improves the component that installs Windows updates.
    Build
    22631.6491
    Security
    80 fixed · 2 critical · 1 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5071417

    Closes exploited Cloud Files flaw; adds a PowerShell warning

    The update fixes 30 Important vulnerabilities, including an exploited Cloud Files driver flaw. PowerShell 5.1 now warns before running scripts from web content.

    Check the newer update, KB5073455
    Secure Boot certificates used by most Windows devices started expiring in June 2026. Devices without the newer certificates can still start and receive standard Windows updates; check certificate status in Windows Security.

    Key changes 30 CVEs · 3 changes

    • Improved PowerShell 5.1: Invoke-WebRequest now shows a security warning before processing web content that could run scripts. You can continue or cancel.
    • Improved Servicing stack: The component that installs Windows updates receives quality improvements.
    • Fix Windows security: Windows receives fixes for security issues.
    Build
    22631.6345
    Security
    30 vulnerabilities fixed · 1 actively exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview Final update for this version

    KB5070312

    File Explorer clicks and Chinese-named TAR extraction addressed

    Addresses File Explorer mouse-click problems, TAR extraction failures with long Chinese names, and other issues. It is the final preview update for version 23H2; supported editions will receive only monthly security updates going forward.

    Check the newer update, KB5071417
    This is the final preview update for version 23H2. Supported editions will receive only monthly security updates going forward.

    Key changes 5 changes

    • Improved Servicing stack: The component that installs Windows updates receives quality improvements.
    • Fix Country and Operator Settings Asset (COSA): Profiles for certain mobile operators are brought up to date.
    • Fix File Explorer: Addresses cases where File Explorer sometimes stopped responding to mouse clicks until you closed and reopened it.
    Build
    22631.6276
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5068865

    HTTP request parsing tightened; kernel flaw exploited

    Fixes an HTTP.sys request-parsing issue and addresses 33 vulnerabilities, including an actively exploited Windows Kernel flaw. It also includes improvements to the servicing stack.

    Check the newer update, KB5070312
    Secure Boot certificates used by most Windows devices have started expiring in June 2026. Devices without newer certificates continue to start and operate normally and continue to receive standard Windows updates.

    Key changes 33 CVEs · 2 changes

    • Improved Servicing stack: The component that installs Windows updates gets quality improvements to help devices receive and install updates.
    • Fix Networking: HTTP requests are parsed correctly when front-end proxies are involved, avoiding a parsing discrepancy caused by a single line break in...
    • Exploited CVE-2025-62215: Windows Kernel Elevation of Privilege Vulnerability
    Build
    22631.6199
    Security
    33 fixed · 2 critical · 1 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5067112

    Fixes touch-keyboard input and virtual-switch network loss

    Addresses touch-keyboard input failures after sleep, network loss from external virtual switches, and other issues. It also enables Personalized Offers during setup and in Settings.

    Check the newer update, KB5068865
    Support for version 23H2 Home and Pro editions ended on November 11, 2025.

    Key changes 6 changes

    • New Shell: Personalized Offers is enabled during device setup and in Settings after you reach the desktop.
    • Improved Servicing stack: The update improves the component that installs Windows updates, helping devices receive and install updates reliably.
    • Fix App compatibility (known issue): Unexpected User Account Control prompts for some apps, including Autodesk AutoCAD, are addressed.
    Build
    22631.6133
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update
    Zero-day

    KB5066793

    Exploited Remote Access flaw addressed; risky file previews disabled

    The update addresses 109 vulnerabilities, including three exploited flaws, and disables File Explorer previews for files downloaded from the internet. It also removes a fax-modem driver and addresses PowerShell remoting timeouts.

    Check the newer update, KB5067112
    Secure Boot certificates used by most Windows devices have started expiring in June 2026. Review Microsoft's guidance and update certificates in advance to avoid possible boot disruption.

    Key changes 109 CVEs · 5 changes

    • Improved Cryptography: RSA-based smart card certificates use a different Windows certificate provider. Smart card authentication might be affected by this cha...
    • Improved File Explorer: File Explorer automatically disables previews for files downloaded from the internet.
    • Improved Servicing stack: The component that installs Windows updates receives quality improvements.
    Build
    22631.6060
    Security
    109 fixed · 2 critical · 3 exploited
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5065790

    SMB file sharing and SIM-PIN sign-in problems fixed

    Addresses SMB file-sharing failures and fixes a sign-in screen freeze after entering a SIM PIN.

    Check the newer update, KB5066793
    Support for version 23H2 Home and Pro ended on November 11, 2025.

    Key changes 9 changes

    • Improved Country and Operator Settings Asset (COSA): Profiles for certain mobile operators are brought up to date.
    • Fix Authentication: The sign-in screen no longer stops responding after you enter a SIM PIN while signing in over a mobile broadband connection.
    • Fix Browser: Addresses an issue that could make Microsoft Edge stop responding when certain same-domain redirects occur in Internet Explorer compati...
    Build
    22631.5984
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Security update

    KB5065431

    SMBv1 file sharing may fail; MSI repairs get fewer UAC prompts

    Shared folders might stop opening over SMBv1 after installation. The update also reduces unexpected prompts during some MSI repairs and includes a fix for a publicly disclosed Windows SMB flaw.

    Check the newer update, KB5065790
    At this release, support was due to end for Windows 11, version 22H2 on October 14, 2025, and version 23H2 Home and Pro on November 11, 2025. Microsoft recommends upgrading to a newer version.
    Known issues: 1 open
    • SMBv1 protocol connectivity

    Key changes 50 CVEs · 3 changes

    • New File server: IT teams can check whether devices or software may conflict with SMB server security settings before turning on those protections.
    • Improved Servicing stack: The part of Windows that installs updates gets quality improvements.
    • Fix App compatibility (known issue): Some non-admin users get fewer unexpected approval prompts during certain app setup or repair steps.
    Build
    22631.5909
    Security
    50 fixed · 8 critical
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Optional preview
    Preview

    KB5064080

    Windows Backup reaches general availability; Explorer and input fixes

    Windows Backup for Organizations is generally available, and the preview fixes File Explorer, input, and other problems. Standard users might still see unexpected UAC prompts during MSI repairs; KB5065431 addresses the issue.

    Check the newer update, KB5065431
    Secure Boot certificates used by most Windows devices start expiring in June 2026. Microsoft recommends reviewing its guidance and preparing to update them.
    Known issues: 1 open
    • Unexpected User Account Control (UAC) prompt when doing MSI repair operations

    Key changes 15 changes

    • New Windows Backup for Organizations: Windows Backup for Organizations is now generally available for organizations.
    • Improved Servicing stack: The component that installs Windows updates gets quality improvements.
    • Fix Copilot: The Copilot key works more reliably, and users can restart Copilot after using the key.
    Build
    22631.5840
    Restart
    Required
  • Windows 11 23H2 Windows 11 23H2 Out-of-band update
    Out-of-band

    KB5066189

    Reset failures addressed; MSI repair prompts listed

    Attempts to reset or recover a device might fail after the August security update; this optional release addresses that problem. Standard users might still see unexpected prompts during app repairs.

    Check the newer update, KB5064080
    Secure Boot certificates used by most Windows devices have started expiring in June 2026. Review Microsoft’s guidance and update certificates in advance.
    Known issues: 1 open
    • Unexpected User Account Control (UAC) prompt when doing MSI repair operations

    Key changes 3 changes

    • Improved Windows 11, version 23H2: Includes the quality improvements from the August 12 update.
    • Improved Servicing stack: The component that installs Windows updates gets quality improvements.
    • Fix Reset and recovery: Resetting or recovering a device might fail after the August 2025 security update. This release addresses the problem.
    Build
    22631.5771
    Restart
    Required

.NET Framework updates

All .NET Framework updates →

.NET Framework is updated separately from Windows 11: each of these updates has its own KB and reaches Windows 11, version 23H2 through Windows Update.

  • KB5127692 Oct 13, 2026
    3.5, 4.8.1 Patch Tuesday
  • KB5126424 Sep 8, 2026
    3.5, 4.8.1 Patch Tuesday
  • KB5120713 Aug 11, 2026
    3.5, 4.8.1 Patch Tuesday
  • KB5101004 Jul 14, 2026
    3.5, 4.8.1 Patch Tuesday
  • KB5087058 May 12, 2026
    3.5, 4.8.1 Patch Tuesday
  • KB5082424 Apr 14, 2026
    3.5, 4.8.1 Patch Tuesday