Windows 10 ESU update fixes critical bug with recovery and restore
On October 14 last year, general support for Windows 10 ended. If you want to continue using Windows 10 without sacrificing security, you need to enroll in the Extended Security Updates (ESU) program. And if you did, now you need to install the latest update.
Update KB5075039, for Windows 10 ESU and Windows 10 Enterprise LTSC 2021, fixes a bug in Windows Recovery Environment (WinRE). According to BleepingComputer, there have been issues with Windows 10’s Recovery feature since October, despite the fact that we’ve seen several updates since then.
According to Microsoft’s release notes:
This update automatically applies Safe OS Dynamic Update (KB5073933) to Windows Recovery Environment (WinRE) on a running PC. The update installs improvements to Windows Recovery features. The following is a summary of a known issue that this update addresses when you install this update:
[Windows Recovery Environment (WinRE)] Fixed: WinRE did not start after installing October 14, 2025 update KB5068164.
You will need at least 250 MB of free space in the WinRE partition to install this update. You will not be offered the update if you do not have enough free space in WinRE, or if you do not have a WinRE partition at all.
To install the update, you will find it in Windows Update by accessing Start > Settings > Windows Update > Check for updates. This particular update is only available through Windows Update.
