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Windows 11 24H2 Windows 11 24H2 Out-of-band update
Out-of-band

KB5040529

KB5040529: Cumulative update for Windows 11, version 24H2, July 2024. Roblox Store downloads remain unavailable on Arm; six emoji added

In short

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.

Does it affect you? Applies to: Devices running Windows 11, version 24H2, including x64 and Arm64 devices. Version 24H2 is targeting Copilot+ PCs and devices that previously used Windows Insider 24H2 builds.

Build
26100.1301
Restart
Required
Review notes Additional details from the official release notes (1) Read note
  • In detail Players on Arm devices still cannot download and play Roblox through the Microsoft Store. They can download it directly from Roblox.com as a workaround.

The official sources are linked at the end of the page.

What changes

Fixes 10 changes

Task Manager

Gradual rollout
  • Safely Remove Hardware no longer fails to eject USB devices when Task Manager is open.1

Widgets

  • Widgets icons on the taskbar are no longer pixelated or fuzzy, and there are more animated icons.2

Share button

For: people using USB controllers with Game Bar

  • The Share button works with Game Bar on USB controllers.3
    The button might not work with Game Bar on USB controllers.

Windows Server vNext

  • The cache size display in the latest build behaves as expected.4

Group Policy Preferences Item Level Targeting (ILT) and Local Users and Groups

For: IT administrators managing the specified multi-forest deployments

  • You can choose target-domain groups for ILT and accounts from Local Users and Groups in the specified multiple-forest, one-way-trust deployments.5
    Applies to Enhanced Security Admin Environment (ESAE), Hardened Forests (HF), or Privileged Access Management (PAM) deployments where the target domain has a one-way trust with the admin’s domain.

Local Security Authority Subsystem Service (LSASS)

For: devices using Field Engineering logging level 5

  • LSASS no longer fails at times when Field Engineering logging is set to 5.6

NetAdapterCx module

  • Devices using certain WLAN cards no longer stop responding.7

GPU-Paravirtualized VM or Container

For: IT administrators using GPU-paravirtualized VMs or containers

  • After a restart, graphic allocation creation is less likely to fail, improving VM and container reliability.8
    Addresses bug 51901797.

PowerShell and VBScript

For: people using PowerShell or VBScript with Windows Update Agent APIs

  • Scripts can use Windows Update Agent APIs again.9
    Addresses bug 52417543.

BitLocker

For: devices with BitLocker enabled

  • A firmware update is less likely to fail when BitLocker is turned on.10

New features 15 changes

Emoji

Gradual rollout
  • Adds six Emoji 15.1 designs, including horizontal and vertical head shakes, a phoenix, a lime, a brown mushroom, and a broken chain.11
    Windows continues to represent family groupings with people and adds right- or left-facing directions for some people emoji.

Start menu

Gradual rollout 2 items
  • A new account manager on the Start menu shows Microsoft account benefits and makes account settings easier to manage.12
    Available when you sign in to Windows with a Microsoft account.
  • You can drag apps from the Start menu’s pinned section to the taskbar.13

Windows Backup

Gradual rollout
  • Windows can back up more sound settings, including your sound scheme, so you can restore them on a new device.14
    This works when Remember my preferences is on and Personalization and Other Windows settings are selected under Settings > Accounts > Windows backup.

Lock screen

Gradual rollout
  • Sports, traffic, and finance content can appear alongside weather on the lock screen.15
    Turn it on under Settings > Personalization > Lockscreen.

File Explorer

Gradual rollout
  • You can drag files between breadcrumbs in the File Explorer address bar.16

Settings

Gradual rollout 3 items
  • A Linked devices page lets you manage your PCs and Xbox consoles.17
    The page appears on Home and Pro editions when you sign in with a Microsoft account.
  • An Add now button lets you add a recovery email address if your Microsoft account does not have one.18
    The button appears when you sign in to your Microsoft account.
  • A Game Pass recommendation card appears on the Settings home page for people who actively play games on their PC.19
    The Settings home page and card are available on Home and Pro editions when signed in with a Microsoft account.

Windows share

Gradual rollout 4 items
  • You can create QR codes for webpage URLs and cloud files from the Windows share window.20
    In Microsoft Edge, select the share button and choose Windows share options.
  • You can email yourself from the Windows share window, using the address in your Microsoft account.21
  • You can share directly to specific Microsoft Teams channels and group chats.22
    Requires signing in with a Microsoft Entra ID.
  • You can copy files from the Windows share window using the new Copy button.23

PC Manager

  • PC Manager is added to devices in China.24

Azure Virtual Desktop

For: Azure Virtual Desktop users

  • You can use OneDrive as a RemoteApp in Azure Virtual Desktop.25

Improvements 11 changes

Settings

Gradual rollout
  • The Rename your PC and Change date and time dialogs get updated visuals to match Windows 11.26

Windows share

Gradual rollout
  • Clicking outside the Windows share window no longer closes it; use the close button in the upper-right corner.27

Task Manager

Gradual rollout 6 items
  • Task Manager displays DDR speed in MT/s instead of MHz.28
  • Task Manager releases process handles more quickly when it stops a process.29
  • Task Manager is more reliable.30
  • Changing the process sort order in Task Manager performs better.31
  • Task Manager improves keyboard focus, Tab navigation, text scaling, screen-reader item names, and high-contrast heatmaps.32
  • Resizing the Task Manager window is easier when you grab its top edge.33

Virtual Filtering Platform (VFP)

  • Windows nodes can collect more information about dropped network packets, making issues easier to troubleshoot.34
    Adds support for packet drop collection in VFP.

Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)

  • The vulnerable-driver blocklist includes more drivers at risk of being used in Bring Your Own Vulnerable Driver attacks.35
    Adds drivers to DriverSiPolicy.p7b.

Servicing stack

  • The component that installs Windows updates gets quality improvements to help devices receive and install Microsoft updates.36
    The package includes servicing stack update KB5040710, version 26100.1298.

Known issues

  1. Open Affects: Everyone

    We’re aware of an issue where players on Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

    Players on Arm devices cannot download or play Roblox through the Microsoft Store on Windows.37

    How to apply the workaround Workaround

    Download Roblox directly from www.Roblox.com to play it on an Arm device.37

Technical details

Data sheet · Security · Downloads · Components Click to collapse or expand

Data sheet

Released
2024-07-30
Classification
Updates
Type
Cumulative update
Restart
Required
Replaces
KB5040435, KB5039304, KB5039239
Replaced by
KB5041571
VersionBuildChannel
24H2 26100.1301 General availability

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (37)
  1. 1. Ejecting USB devices using the Safely Remove Hardware option fails. This occurs when Task Manager is open. support.microsoft.com
  2. 2. The Widgets icons on the taskbar are no longer pixelated or fuzzy. This update also gives you a larger set of animated icons. support.microsoft.com
  3. 3. On USB controllers, the button might not work with Game Bar. support.microsoft.com
  4. 4. In the latest build, the cache size display behavior is not what you expect. support.microsoft.com
  5. 5. You cannot choose a group from the target domain for ILT. Also, you cannot choose an account from Local Users and Groups. The forest does not appear. support.microsoft.com
  6. 6. It fails at times when you set Field Engineering logging to 5. support.microsoft.com
  7. 7. Devices that use certain WLAN cards stop responding. support.microsoft.com
  8. 8. After you restart it, graphic allocation creation might fail. Because of this, the VM and Container are not as reliable as you expect. support.microsoft.com
  9. 9. The issue stops you from using Windows Update Agent (WUA) APIs in your scripts. support.microsoft.com
  10. 10. A firmware update might fail if you turn on BitLocker. support.microsoft.com
  11. 11. This update adds support for Emoji 15.1. support.microsoft.com
  12. 12. The new account manager is on the Start menu. When you use a Microsoft account to sign in to Windows, you will get a glance at your account benefits. support.microsoft.com
  13. 13. You can drag apps from the pinned section of the menu and pin them to the taskbar. support.microsoft.com
  14. 14. Windows will now back up many of your sound settings (this includes your sound scheme). support.microsoft.com
  15. 15. Sports, traffic, and finance content will appear along with weather. support.microsoft.com
  16. 16. You can now use your mouse to drag files between breadcrumbs in the File Explorer address bar. support.microsoft.com
  17. 17. This update adds a page to Settings > Accounts called Linked devices. On it, you can manage your PCs and Xbox consoles. support.microsoft.com
  18. 18. This update puts the “Add now” button in Settings > Accounts. When you select it, you can add a recovery email address if you have not added one for your Microsoft account yet. support.microsoft.com
  19. 19. The card appears if you actively play games on your PC. support.microsoft.com
  20. 20. You can now create quick response (QR) codes for webpage URLs and cloud files from the Windows share window. support.microsoft.com
  21. 21. You can now send email to yourself from the Windows share window. You will receive the email at the email address that is in your Microsoft account. support.microsoft.com
  22. 22. You can directly share to specific Microsoft Teams channels and group chats in the Windows share window. To do so, you must sign in using a Microsoft Entra ID. support.microsoft.com
  23. 23. You can now copy files from the Windows Share window. Just click the new Copy button. support.microsoft.com
  24. 24. This update adds PC Manager to devices in China. support.microsoft.com
  25. 25. You can now use OneDrive as a RemoteApp in Azure Virtual Desktop. support.microsoft.com
  26. 26. This update includes updated visuals for the “Rename your PC” and “Change date and time” dialogs to match the Windows 11 visuals. support.microsoft.com
  27. 27. Clicking outside of the window will no longer close it. To close it, select the close button at the upper-right corner. support.microsoft.com
  28. 28. This update changes the units for DDR speed from MHz to MT/s. support.microsoft.com
  29. 29. Task Manager releases process handles more quickly when it stops a process. support.microsoft.com
  30. 30. This update makes Task Manager more reliable. support.microsoft.com
  31. 31. This update affects the sort order of processes in Task Manager. Performance is better when you change the order. support.microsoft.com
  32. 32. This update makes Task Manager more accessible by improving: support.microsoft.com
  33. 33. This update makes resizing the Task Manager window easier when you grab the top of its window. support.microsoft.com
  34. 34. In Windows nodes, VFP has more support for packet drop collection. This will make it easier to troubleshoot issues. support.microsoft.com
  35. 35. This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. support.microsoft.com
  36. 36. This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. support.microsoft.com
  37. 37. We’re aware of an issue where players on Arm devices are unable to download and play Roblox via the Microsoft Store on Windows. Players on Arm devices can play Roblox by downloading the title directly from www.Roblox.com. support.microsoft.com
Checked automatically: 8 of 8 checks passed, 37 quoted passages · compared with Microsoft's page on Oct 20, 2026
  • Quotes found in the official pages: passed
  • Numbers found in the sources: passed
  • Vulnerabilities from the dossier only: passed
  • Links to allowed domains only: passed
  • Every official change covered: passed
  • Readable plain text: passed
  • Changes confirmed by the file list: passed
  • Sources agree: passed

A second AI read the text against the sources: correctness 3/5, clarity 4/5, completeness 5/5. How we work

Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake