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The Update Bureau

Windows 11 25H2

Windows 11, version 25H2

Every published release for Windows 11, version 25H2, newest first: what each update changes, whether to install it and any confirmed known issues.

Latest
KB5132061 Nov 10, 2026
Build
26200.9974
Released
Sep 30, 2025
Known issues
19 open

Build history

  • Windows 11 24H2 / 25H2 Windows 11 24H2 / 25H2 Out-of-band update
    Out-of-band

    KB5078127

    Cloud-file errors and Outlook hangs fixed

    Some apps and Outlook setups can open or save cloud files again after errors and hangs began with January updates. This out-of-band update adds that fix.

    Check the newer update, KB5074105
    Support for Windows 11, version 24H2, Home and Pro editions ends October 13, 2026.
    Known issues: 1 open Organizations and IT administrators
    • Password icon might be missing or invisible in the lock screen sign-in options

    Key changes 3 changes

    • Improved AI components: AI components are updated on Copilot+ PCs.
    • Improved Servicing stack: The component that installs Windows updates receives quality improvements.
    • Fix File System: Some apps and Outlook setups can open or save cloud files again after errors and hangs.

    Read update Source: Microsoft

    Builds
    26100.7628 · 26200.7628
    Restart
    Required
  • Windows 11 24H2 / 25H2 Windows 11 24H2 / 25H2 Out-of-band update
    Out-of-band

    KB5077744

    Remote Desktop sign-in failures corrected

    Remote Desktop connections work again for users who could not sign in after the January 13 update. Some lock-screen password icons and cloud-storage apps may still have problems.

    Check the newer update, KB5078127
    Updates for version 24H2 Home and Pro end October 13, 2026.
    Known issues: 2 open
    • Password icon might be missing or invisible in the lock screen sign-in options
    • Apps might become unresponsive when saving files to cloud-based storage

    Key changes 3 changes

    • Improved AI components: Four AI features get updated versions on Copilot+ PCs.
    • Improved Servicing stack: The component that installs Windows updates gets quality improvements.
    • Fix Remote Desktop: Some users can sign in to Remote Desktop connections again.

    Read update Source: Microsoft

    Builds
    26100.7627 · 26200.7627
    Restart
    Required
  • Windows 11 24H2 / 25H2 Windows 11 24H2 / 25H2 Security update
    Zero-day

    KB5074109

    Exploited Desktop Window Manager flaw patched; modem drivers removed

    The update patches an actively exploited flaw in Desktop Window Manager and removes four older modem drivers, which can leave dependent modem hardware unusable.

    Check the newer update, KB5077744
    Windows 11 version 24H2 Home and Pro editions reach the end of updates on October 13, 2026.
    Known issues: 3 open
    • Password icon might be missing or invisible in the lock screen sign-in options
    • Apps might become unresponsive when saving files to cloud-based storage
    • Connection and authentication failures in Azure Virtual Desktop and Windows 365

    Key changes 86 CVEs · 10 changes

    • New Start menu: The redesigned Start menu continues to reach more devices over time.
    • Improved Credentials autofill: Some credential prompts no longer accept virtual keyboard input from remote support or screen sharing tools.
    • Improved Secure Boot: Eligible devices receive new Secure Boot certificates in phases after they show successful update signals.

    Read update Source: Microsoft

    Builds
    26100.7623 · 26200.7623
    Security
    86 fixed · 3 critical · 1 exploited
    Restart
    Required
  • Windows 11 24H2 / 25H2 Windows 11 24H2 / 25H2 Security update Also for Windows Server
    Zero-day

    KB5072033

    Cloud Files driver flaw under attack; File Explorer flash fixed

    An actively exploited Cloud Files driver flaw is addressed, and File Explorer’s brief white flash is fixed. The update also includes fixes for virtual switches and other issues.

    Check the newer update, KB5074109
    Windows 11 version 24H2 Home and Pro reaches the end of updates on October 13, 2026.
    Known issues: 3 open Organizations and IT administrators
    • Password icon might be missing or invisible in the lock screen sign-in options
    • Mirror networking on Windows Subsystem for Linux might fail
    • RemoteApp sessions might fail to start on Azure Virtual Desktop

    Key changes 34 CVEs · 7 changes

    • Improved PowerShell 5.1: A warning now asks before web content can run a script through PowerShell.
    • Improved System Components: Some isolated situations should be more reliable because a Windows service now starts automatically.
    • Improved AI Components: AI components are updated on Copilot+ PCs.

    Read update Source: Microsoft

    Builds
    26100.7462 · 26200.7462
    Security
    34 vulnerabilities fixed · 1 actively exploited
    Restart
    Required
  • Windows 11 24H2 / 25H2 Windows 11 24H2 / 25H2 Optional preview
    Preview

    KB5070311

    File Explorer dark mode refreshed; handheld gaming expands

    File Explorer gets refreshed dark-mode dialogs, and more handheld PCs can use the Xbox full-screen experience. Some users might still see a brief white flash when opening File Explorer in dark mode.

    Check the newer update, KB5072033
    Known issues: 4 open
    • Password icon might be missing or invisible in the lock screen sign-in options
    • Mirror networking on Windows Subsystem for Linux might fail
    • and 2 more

    Key changes 49 changes

    • New Agent in Settings: Settings search shows more results and adds a scroll bar.
    • New Agent in Settings: Recommended settings can show an inline agent option for recently changed settings.
    • New Agent in Settings: A dialog explains why a setting cannot be changed further and offers a way to adjust it.

    Read update Source: Microsoft

    Builds
    26100.7309 · 26200.7309
    Restart
    Required
  • Windows 11 24H2 / 25H2 Windows 11 24H2 / 25H2 Security update Also for Windows Server
    Zero-day

    KB5068861

    Exploited Windows kernel flaw patched; handheld battery drain fixed

    An actively exploited Windows kernel flaw is patched, along with fixes for handheld gaming battery drain and other problems. The password icon and WSL VPN issues remain listed as known issues.

    Check the newer update, KB5070311
    Windows 11 version 24H2 Home and Pro support ends on October 13, 2026.
    Known issues: 2 open Organizations and IT administrators
    • Password icon might be missing or invisible in the lock screen sign-in options
    • Mirror networking on Windows Subsystem for Linux might fail

    Key changes 34 CVEs · 9 changes

    • Improved AI components: Copilot+ PCs receive updated AI components.
    • Improved Servicing stack: The component that installs Windows updates gets quality improvements.
    • Fix Gaming: Gaming handhelds can stay in low-power states again, helping prevent faster battery drain.

    Read update Source: Microsoft

    Builds
    26100.7171 · 26200.7171
    Security
    34 fixed · 2 critical · 1 exploited
    Restart
    Required
  • Windows 11 24H2 / 25H2 Windows 11 24H2 / 25H2 Optional preview
    Preview

    KB5067036

    Redesigned Start menu, new Click to Do actions, and fixes

    The Start menu gets a redesigned layout, while Copilot+ PCs gain new Click to Do and voice access features. The preview also fixes problems with File Explorer, display, sign-in, and Windows Update.

    Check the newer update, KB5068861
    Secure Boot certificates have started expiring in June 2026. Devices without the newer certificates still start and receive updates; check your PC's status in Windows Security. Windows 11, version 24H2 Home and Pro reach the end of updates on October 13, 2026.
    Known issues: 3 open
    • Password icon might be missing or invisible in the lock screen sign-in options
    • Mirror networking on Windows Subsystem for Linux might fail
    • Task Manager might continue running in the background after the app is closed

    Key changes 49 changes

    • New Click to Do: Click to Do shows suggested prompts for selected text and lets you send a custom prompt to Copilot.
    • New Click to Do: Click to Do can suggest a Copilot translation for selected text in another language.
    • New Click to Do: Click to Do can convert units, including length, area, temperature, and speed.

    Read update Source: Microsoft

    Builds
    26100.7019 · 26200.7019
    Restart
    Required
  • Windows 11 24H2 / 25H2 Windows 11 24H2 / 25H2 Out-of-band update Also for Windows Server
    Out-of-band

    KB5070773

    Keyboards and mice work again in Windows Recovery

    Keyboards and mice work again in Windows Recovery after the October 14 security update blocked USB input there. USB devices continue to work normally in Windows.

    Check the newer update, KB5067036
    Secure Boot certificates used by most Windows devices start expiring in June 2026. Review Microsoft's guidance and update certificates in advance.
    Known issues: 3 open
    • Password icon might be missing or invisible in the lock screen sign-in options
    • Problems playing protected content in some BluRay/DVD/Digital TV apps
    • IIS websites might fail to load

    Key changes 3 changes

    • Improved AI components: Four AI components receive version 1.2509.1022.0. These updates apply only to Copilot+ PCs.
    • Improved Servicing stack: The component that installs Windows updates receives quality improvements.
    • Fix USB: USB keyboards and mice work again in Windows Recovery, where they could stop working after the October 14 security update.

    Read update Source: Microsoft

    Builds
    26100.6901 · 26200.6901
    Restart
    Required
  • Windows 11 24H2 / 25H2 Windows 11 24H2 / 25H2 Security update Also for Windows Server
    Zero-day

    KB5066835

    Exploited modem and Remote Access flaws addressed

    Windows closes actively exploited flaws in its modem driver and Remote Access Connection Manager. File Explorer also disables previews for files downloaded from the internet.

    Check the newer update, KB5070773
    Secure Boot certificates used by most Windows devices have started expiring in June 2026. Review Microsoft's guidance and prepare to update them in advance.
    Known issues: 4 open
    • Password icon might be missing or invisible in the lock screen sign-in options
    • Problems playing protected content in some BluRay/DVD/Digital TV apps
    • and 2 more

    Key changes 126 CVEs · 10 changes

    • Improved Cryptography: RSA-based smart card certificates must use a newer Windows certificate storage method.
    • Improved File Explorer: File Explorer turns off previews for files downloaded from the internet to help prevent a security risk.
    • Improved AI components: Four AI components receive updates on Copilot+ PCs.

    Read update Source: Microsoft

    Builds
    26100.6899 · 26200.6899
    Security
    126 fixed · 2 critical · 3 exploited
    Restart
    Required
  • Windows 11 24H2 / 25H2 Windows 11 24H2 / 25H2 Optional preview
    Preview

    KB5065789

    New accessibility, desktop and file tools; fixes for sign-in and playback

    Adds Windows features and fixes several input, sign-in, virtualization and media problems. Some protected-content playback issues remain, and Secure Boot certificates have started expiring in June 2026.

    Check the newer update, KB5066835
    Secure Boot certificates used by most Windows devices have started expiring in June 2026. Review Microsoft's guidance and prepare to update them to avoid possible secure-boot disruption.
    Known issues: 3 open
    • Password icon might be missing or invisible in the lock screen sign-in options
    • Problems playing protected content in some BluRay/DVD/Digital TV apps
    • IIS websites might fail to load

    Key changes 47 changes

    • New Click to Do: New and popular action tags in the Click to Do menu help you find AI-powered actions.
    • New Agents in Settings: Agent search results include a direct link to the related Settings page.
    • New Desktop: You can move the on-screen indicators for brightness, volume, airplane mode and virtual desktops to a different screen position.

    Read update Source: Microsoft

    Builds
    26100.6725 · 26200.6725
    Restart
    Required
  • Windows 11 24H2 / 25H2 Windows 11 24H2 / 25H2 Security update Also for Windows Server

    KB5065426

    Hyper-V and graphics flaws patched; input and audio issues fixed

    Critical Hyper-V and graphics security flaws are patched, along with a publicly disclosed SMB flaw. The update also fixes app input and audio problems.

    Check the newer update, KB5068221
    Secure Boot certificates used by most Windows devices started expiring in June 2026. Review Microsoft's guidance and update certificates in advance to avoid possible boot problems.
    Known issues: 4 open
    • Password icon might be missing or invisible in the lock screen sign-in options
    • Problems playing protected content in some BluRay/DVD/Digital TV apps
    • and 2 more

    Key changes 54 CVEs · 8 changes

    • Improved File server: Organizations can check for device or software problems with SMB Server signing and EPA before deploying hardening measures.
    • Improved AI Components: Four AI components receive updates on applicable Copilot+ PCs.
    • Improved Servicing stack: The component that installs Windows updates gets quality improvements.

    Read update Source: Microsoft

    Builds
    26100.6584 · 26200.6584
    Security
    54 fixed · 8 critical
    Restart
    Required