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Windows 10 22H2 Windows 10 22H2 Optional preview
Preview

KB5036979

KB5036979: Cumulative update for Windows 10, version 22H2, April 2024. Account alerts arrive; Bluetooth earbuds and startup issues get fixes

In short

Adds Microsoft account notifications and improves lock-screen Widgets and Search. It also addresses unstable Bluetooth earbud connections and several crashes, memory leaks, and system issues.

Does it affect you? Applies to: Devices running Windows 10, version 22H2, on x86, x64, or Arm64. The update page does not specify editions.

Build
19045.4355
Restart
Required
Review notes Additional details from the official release notes (1) Read note
  • Known issues Microsoft says this issue has very limited or no impact for this Windows version. If you encounter it, contact Windows support for help.

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

What changes

Fixes 9 changes

Bluetooth

Verified in package
  • Bluetooth connections for some wireless earbuds become more stable.1
    Applies to devices with earbud firmware from April 2023 or later.

Copilot in Windows

  • Copilot in Windows (in preview) works more as expected when app licensing is involved.2
    Addresses an issue affecting apps licensing that caused Copilot in Windows (in preview) not to work as expected.

Modern Standby

  • A device resuming from Modern Standby is less likely to encounter stop error 0x9f.3
    Addresses stop error “0x9f DRIVER_POWER_STATE_FAILURE” after resuming from Modern Standby.

Startup

For: Devices configured to start multiple operating systems

  • A startup race condition that might prevent a machine from starting is addressed.4
    The issue occurs when a bootloader is configured to start multiple operating systems.

Memory management

  • A memory leak affecting some devices is addressed.5
    The leak affects an accelerator backing store management path.

Container networking

Verified in package
  • External ports in container networking receive the correct virtual subnet ID.6
    Addresses the Address Resolution Protocol (ARP) returning the wrong Virtual Subnet ID (VSID) for external ports.

Protected Process Light

  • A way to bypass Protected Process Light protections is addressed.7
    Addresses an issue affecting Protected Process Light (PPL) protections that allowed them to be bypassed.

Distributed Transaction Coordinator

For: Devices using DTC

  • A memory leak that occurs while mappings are retrieved is addressed.8
    The issue affects the Distributed Transaction Coordinator (DTC).

Windows LAPS

  • Windows LAPS post-authentication actions occur at the end of the grace period instead of waiting until restart.9
    Addresses Post Authentication Actions (PAA) occurring at restart rather than at the end of the grace period.

Improvements 8 changes

Widgets

  • Widgets on the lock screen become more reliable and support more visuals and customization.10

Windows Search

Verified in package
  • Search becomes more reliable, makes installed apps easier to find, and provides a personalized app search experience.11

Servicing stack

2 items
  • The update changes how Windows generates reverse update data, helping reduce the cumulative update package size by about 20%.12
    Starting April 23, 2024, the LCU no longer includes reverse differentials; the client generates the reverse update data.
  • The servicing stack receives quality improvements to help Windows install updates reliably.17
    The package includes the Windows 10 servicing stack update, version 19045.4351.

Media

  • Some hardware setups use media memory more efficiently, with less overcommitment.13
    Improves media allocation memory granularity for some hardware setups.

Mobile operator settings

Verified in package
  • Country and mobile operator settings are updated for some mobile operators.14
    Updates Country and Operator Settings Asset (COSA) profiles.

Hypervisor-protected code integrity

For: Devices using HVCI

  • Drivers that are compatible with hypervisor-protected code integrity are accepted.15
    Updates hypervisor-protected code integrity (HVCI) to accept drivers that are now compatible.

Driver blocklist

  • The list of drivers considered at risk from vulnerable-driver attacks is updated.16
    Includes quarterly changes to DriverSiPolicy.p7b for Bring Your Own Vulnerable Driver (BYOVD) risks.

New feature 1 change

Settings

Gradual rollout Verified in package
  • Notifications about your Microsoft account begin appearing in Settings and the Start menu.18
    You can manage Settings notifications in Settings > Privacy & security > General.

Known issues

  1. Open Affects: Everyone

    After installing this update, you might be unable to [change your user account profile picture](https://support.microsoft.com/en-us/windows/change-your-account-picture-3645cdc7-acab-49d2-76a9-4ce7e5e…

    After installing this update, you might be unable to change your user account profile picture. Trying to browse for a picture might show error code 0x80070520.19

    How to apply the workaround Workaround

    Contact Windows support for help if you encounter this issue.19

  2. Resolved Affects: Organizations and IT administrators Resolved by KB5040525

    After you install KB5034203 (dated 01/23/2024) or later updates, some Windows devices that use the [DHCP Option 235](https://learn.microsoft.com/tr…

    Some devices using DHCP Option 235 to find Microsoft Connected Cache nodes might be unable to use those nodes after KB5034203 or later. They instead download updates and apps from the public internet. KB5040525 addresses this issue.20

    Resolution Fixed in KB5040525

    Install KB5040525 (or a later cumulative update) on affected devices. No manual workaround is required after updating.

  3. Open Affects: Everyone

    Windows devices using more than one (1) monitor might experience issues with desktop icons moving unexpectedly between monitors or other icon alignment issues when attempting to use Copilot in Window…

    On devices with more than one monitor, desktop icons might move between monitors or become misaligned when using Copilot in Windows (in preview). A new Copilot experience in KB5039299 or later is being rolled out gradually to address this.21

    How to apply the workaround Workaround

    Wait for the new Copilot experience, which is rolling out gradually to devices with KB5039299 or later.21

  4. Open Affects: Everyone

    Copilot in Windows (in preview) is not currently supported when your taskbar is located vertically on the right or left of your screen.

    Copilot in Windows (in preview) is not supported when the taskbar is positioned vertically on the left or right side of the screen. A new Copilot experience in KB5039299 or later is being rolled out gradually to address this.22

    How to apply the workaround Workaround

    Wait for the new Copilot experience, which is rolling out gradually to devices with KB5039299 or later.22

  5. Resolved Affects: Everyone Resolved by KB5039299

    Certain apps might display an "Open With" dialog box asking, "How do you want to open this file?".

    Certain apps might show an “Open With” dialog instead of running a task selected from the app's taskbar or Start menu icon. KB5039299 addresses this issue.23

    Resolution Fixed in KB5039299

    Install KB5039299 (or a later cumulative update) on affected devices. No manual workaround is required after updating.

  6. Resolved Affects: Everyone Resolved by KB5037768

    Windows devices might face VPN connection failures after installing the update dated April 9, 2024, or later.

    Windows devices might have VPN connection failures after installing the update dated April 9, 2024, or later. KB5037768 addresses this issue.24

    Resolution Fixed in KB5037768

    Install KB5037768 (or a later cumulative update) on affected devices. No manual workaround is required after updating.

Technical details

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

Data sheet

Released
2024-04-23
Classification
Updates
Type
Cumulative update
Restart
Required
Replaces
KB5035941, KB5034843, KB5034203
Replaced by
KB5037849
VersionBuildChannel
22H2 19045.4355 General availability

Security

No vulnerabilities are listed for this update.

Updated components

7,767 files changed since the previous update for the same versions.

Top changed componentsFiles
Settings180
Graphics and display79
Bluetooth75
Networking66
Security and sign-in59
Printing57
Audio52
Hyper-V and virtualization49
File Explorer and shell45
Remote Desktop45
Search33
Storage and file systems25

Verified in package: changed files confirm Bluetooth, Container networking, Windows Search, Mobile operator settings, Settings.

Sources

Updated
Cited passages from Microsoft's official notes (24)
  1. 1. This occurs on devices that have firmware from April 2023 and later. support.microsoft.com
  2. 2. This update addresses an issue that affects apps licensing. Because of this, Copilot in Windows (in preview) does not work as you expect. support.microsoft.com
  3. 3. You might get the stop error, “0x9f DRIVER_POWER_STATE_FAILURE.” support.microsoft.com
  4. 4. This occurs when you set up a bootloader to start up multiple OSes. support.microsoft.com
  5. 5. A memory leak occurs that affects some devices. support.microsoft.com
  6. 6. It returns the wrong Virtual Subnet ID (VSID) for external ports. support.microsoft.com
  7. 7. You can bypass them. support.microsoft.com
  8. 8. A memory leak occurs when it retrieves mappings. support.microsoft.com
  9. 9. Instead, they occur at restart. support.microsoft.com
  10. 10. This update affects Widgets on the lock screen. They are more reliable and have improved quality. support.microsoft.com
  11. 11. This update also gives you a personalized app search experience. support.microsoft.com
  12. 12. Starting April 23, 2024, the LCU will no longer have the reverse differentials. The client will generate the reverse update data. support.microsoft.com
  13. 13. It improves their memory granularity for some hardware setups. This lowers overcommitment. support.microsoft.com
  14. 14. This update makes Country and Operator Settings Asset (COSA) profiles up to date for some mobile operators. support.microsoft.com
  15. 15. It accepts drivers that are now compatible. support.microsoft.com
  16. 16. It adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks. support.microsoft.com
  17. 17. This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. support.microsoft.com
  18. 18. You can manage your Settings notifications in Settings > Privacy & security > General. support.microsoft.com
  19. 19. If you encounter this issue on your device, please contact Windows support for help support.microsoft.com
  20. 20. This issue is addressed in KB5040525. support.microsoft.com
  21. 21. We are gradually rolling out a new Copilot experience for devices with KB5039299 or later updates installed. support.microsoft.com
  22. 22. This new experience will address this issue. support.microsoft.com
  23. 23. This issue is addressed in KB5039299. support.microsoft.com
  24. 24. This issue is addressed in KB5037768. support.microsoft.com
Checked automatically: 8 of 8 checks passed, 24 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 4/5, clarity 4/5, completeness 4/5. 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