IMPORTANT This update will not be offered if your Windows Recovery Environment (WinRE) meets any of the following conditions: 

  • If the WinRE recovery partition does not have sufficient free space, see the NOTE in the "Summary" section. The note provides instructions about how to increase the available free space in the WinRE recovery partition.

  • If the WinRE recovery partition was manually updated by using the procedure in Add an update package to Windows RE and is already up to date.

  • If the WinRE image has a version greater than or equal to version 10.0.22000.2710. To determine the version of your WinRE image, check the WinREVersion registry value at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion.

  • If your running PC does not have a WinRE recovery partition. To verify if you have WinRE enabled, run the following command in an elevated command prompt: reagentc /info. If WinRE is enabled, you will see Windows RE status in the output with a value of Enabled. In this scenario, this update might be needed.

Change date

Change description

August 14, 2024

  • Updated the WinRE version to greater than or equal to version 10.0.22000.2710.

August 13, 2024

  • Moved this content from update KB5034440 which has been retired.

  • Added content to point to the NOTE in the “Summary” section about how to increase the available free space in the WinRE recovery partition.

  • Updated the “Summary” section to remove unneeded information about the CVE.

July 9, 2024

  • Added the IMPORTANT note at the top of the article. This note combines the conditions under which this WinRE update is not needed and will not be offered.

  • Revised the NOTE in the "Summary" section about how to increase the WinRE recovery partition to 250 MB of free space.

Summary

This update automatically applies Safe OS Dynamic Update (KB5034236) to the Windows Recovery Environment (WinRE) on a running PC. The update installs improvements to Windows recovery features.

NOTE This update requires 250 MB of free space in the recovery partition to install successfully.

If you would like to make sure your device is offered this update, please follow the Instructions to manually resize your partition or use a sample script to increase the size of the WinRE recovery partition.

Once your partition has sufficient disk space, click Start > Settings > Windows Update > Check for updates to have the update offered to you and then install it.

How to get this update

This update is available through the following release channels.

Release Channel

Available

Windows Update and Microsoft Update

Yes

Microsoft Update Catalog

No

Windows Server Update Services (WSUS) and Microsoft Endpoint Configuration Manager

No

Prerequisites

The PC must have 250 MB of free space in the recovery partition to apply this update successfully.

Restart information

You do not need to restart your device after applying this update.

Verify the installation of this update

After installing this update, the WinRE version installed on the device should be greater than or equal to version 10.0.22000.2710​​​​​​​. 

To determine the version of your WinRE image, check the WinREVersion registry value at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion.

Removal information

This update cannot be removed once it is applied to a Windows image.

Update replacement information

This update replaces the previously released update KB5034440.

References

Description of the standard terminology that is used to describe Microsoft software updates

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.