May 13, 2025—KB5058379 (OS Builds 19044.5854 and 19045.5854)

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Summary

This article lists the security issues and quality improvements included in this security update. The bold text within the brackets indicates the item or area of the change we are documenting.

Improvements

Applies to: Windows 10 Enterprise LTSC 2021 and Windows 10 IoT Enterprise LTSC 2021

Important: Use EKB KB5003791 to update to Windows 10, version 21H2 on supported editions.

This security update includes quality improvements that were a part of update KB5055612 (released April 22, 2025). Below is a summary of the key issues that this update addresses when you install this KB. If there are new features, it lists them as well. The bold text within the brackets indicates the item or area of the change we are documenting.

[Secure Boot Advanced Targeting (SBAT) and Linux Extensible Firmware Interface (EFI)] This update applies improvements to SBAT for the detection of Linux systems.

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 new Security Update Guide website and the May 2025 Security Updates.

Windows 10 servicing stack update (KB5058526) - 19044.5853 and 19045.5853

Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing updates.

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. To learn more about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

Known issues in this update

Symptoms

Devices that have certain Citrix components installed might be unable to complete installation of the January 2025 Windows security update. This issue was observed on devices with Citrix Session Recording Agent (SRA) version 2411. The 2411 version of this application was released in December 2024. Affected devices might initially download and apply the January 2025 Windows security update correctly, such as via the Windows Update page in Settings. However, when restarting the device to complete the update installation, an error message with text similar to “Something didn’t go as planned. No need to worry – undoing changes” appears. The device will then revert to the Windows updates previously present on the device. This issue likely affects a limited number of organizations as version 2411 of the SRA application is a new version. Home users are not expected to be affected by this issue.

Workaround

The issue has been resolved in Citrix Session Recording Agent version 2503, released on April 28, 2025, and newer versions.

For details, see the documentation provided by Citrix at "Microsoft's January Security Update Fails/Reverts on a machine with 2411 Session Recording Agent".

How to get this update

Before you install this update

Based on your installation scenario, choose one of the following:

For offline OS image servicing:

If your image does not have the July 25, 2023 (KB5028244) or later LCU, you must install the special standalone October 13, 2023 SSU (KB5031539) before installing this update.
For Windows Server Update Services (WSUS) deployment or when installing the standalone package from Microsoft Update Catalog:

If your devices do not have the May 11, 2021 (KB5003173) or later LCU, you must install the special standalone August 10, 2021 SSU (KB5005260) before installing this update.

Install this update

To install this update, use one of the following Windows and Microsoft release channels.

Available	Next Step
	This update will be downloaded and installed automatically from Windows Update and Microsoft Update.

If you want to remove the LCU

To 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 information

A list of the files that are included in this update are provided in a CSV (Comma delimited) (*.csv) file. The file can be opened in a text editor such as Notepad or in Microsoft Excel.

Download Icon Download the file information for this cumulative update KB5058379 now.

Download Icon Download the file information for the SSU (KB5058526) - versions 19044.5853 and 19045.5853 update now.

May 13, 2025—KB5058379 (OS Builds 19044.5854 and 19045.5854)

Summary

Known issues in this update

How to get this update

File information

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Available	Next Step
	To get the standalone package for this update, go to the Microsoft Update Catalog website.