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The Update Bureau

Windows 11 24H2

Windows 11, version 24H2

Every published release for Windows 11, version 24H2, newest first: what each update changes, whether to install it and any confirmed known issues.

Latest
KB5132061 Nov 10, 2026
Build
26100.9974
Released
Oct 1, 2024
Home and Pro
no longer updated since Oct 13, 2026
Enterprise and Education
updates until Oct 12, 2027
Known issues
38 open

Build history

  • 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 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 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 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 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 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 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 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
  • 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 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 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 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 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 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 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 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 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 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 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