May 14, 2024—KB5037771 (OS Builds 22621.3593 and 22631.3593)

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Highlights

• This update addresses a known issue that might cause your VPN connection to fail. This occurs after you install the update dated April 9, 2024, or later.

Improvements

**Note:**To view the list of addressed issues, click or tap the OS name to expand the collapsible section.

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Windows 11, version 23H2

**Important:**Use EKB KB5027397 to update to Windows 11, version 23H2.

This security update includes quality improvements. Key changes include:

• This build includes all the improvements in Windows 11, version 22H2.
• No additional issues are documented for this release.

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Windows 11, version 22H2

This security update includes improvements that were a part of update KB5036980 (released April 23, 2024). When you install this KB:

• This update addresses an issue that might affect domain controllers (DC). NTLM authentication traffic might increase.
• This update addresses an issue that might affect Virtual Secure Mode (VSM) scenarios. They might fail. These scenarios include VPN, Windows Hello, Credential Guard, and Key Guard.
• This update addresses an issue that affects Server Message Block (SMB) clients. They fail to make SMB Multichannel connections. Because of this, file transfers are slow. This issue occurs after you install KB5036980 (April 23, 2024). In the Windows Event Log, Event ID 30826 appears for Microsoft-Windows-SMBClient/Connectivity.
  If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device.For more information about security vulnerabilities, please refer to the Security Update Guide website and the May 2024 Security Updates.

Windows 11 servicing stack update - 22621.3522 and 22631.3522

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

Known issues in this update

Applies to	Symptom	Workaround
All users	After installing this update, you might be unable to change your user account profile picture.When attempting to change a profile picture by selecting the button Start>Settings> Accounts>Your info, and then selecting** Choose a file**, you might receive an error message with error code 0x80070520.	This issue is addressed in KB5037853.
Enterprise users	After installing this update or later updates, you might face issues while upgrading from Windows Pro to a valid Windows Enterprise subscription.Resulting from this operation, you might observe the following symptoms: - OS upgrade operations may fail, and this might be shown in the LicenseAcquisition scheduled task in Task Scheduler -> Task Scheduler Library -> Microsoft -> Windows -> Subscription as ‘Access denied error (error code 0x80070005)’ under ‘Last Run Result’.	We are working on a resolution that will be released on a Windows update in the coming weeks.

How to get this update

Before installing this updateMicrosoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.Install this update****Release Channel	Available	Next Step
Windows Update and Microsoft Update	Yes	None. This update will be downloaded and installed automatically from Windows Update.
Windows Update for Business	Yes	None. This update will be downloaded and installed automatically from Windows Update in accordance with configured policies.
Microsoft Update Catalog	Yes	To get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows Server Update Services (WSUS)	Yes	This update will automatically sync with WSUS if you configure Products and Classifications as follows:Product: Windows 11Classification: Security Updates

If you want to remove the LCUTo remove the LCU after installing the combined SSU and LCU package, use the DISM/Remove-Package command line option with the LCU package name as the argument. You can find the package name by using this command:DISM /online /get-packages.Running Windows Update Standalone Installer (wusa.exe) with the**/uninstall **switch on the combined package will not work because the combined package contains the SSU. You cannot remove the SSU from the system after installation.

File informationFor a list of the files that are provided in this update, download the file information for cumulative update 5037771. For a list of the files that are provided in the servicing stack update, download the file information for the SSU - versions 22621.3522 and 22631.3522.