Microsoft released Windows 11 KB5065378, KB5064097 Setup and Recovery updates

Microsoft this past week released a couple of new optional non-security preview C release updates under KB5064080 (for Windows 11 23H2) and KB5064081 (for Windows 11 24H2). Alongside those the company also released new accompanying dynamic updates.

For those who may not know, dynamic updates bring improvements to the Windows Recovery in the form of Windows Recovery Environment (WinRE) updates, also called Safe OS updates, as well as to the Setup binaries in the form of Setup updates.

These Dynamic Update packages are meant to be applied to existing Windows images prior to their deployment. These packages include fixes to Setup.exe binaries, SafeOS updates for Windows Recovery Environment, and more. Dynamic Updates also help preserve Language Pack (LP) and Features on Demand (FODs) content during the upgrade process. VBScript, for example, is currently an FOD on Windows 11 24H2.

Both setup and recovery updates were released but only for version 24H2 and previous versions did not receive them. The updates also applies to Windows Server 2025. The changelogs are given below. First up we have the Setup update:

KB5065378: Setup Dynamic Update for Windows 11, version 24H2 and Windows Server 2025: August 29, 2025

 

Summary

 

This update makes improvements to Windows setup binaries or any files that setup uses for feature updates in Windows 11, version 24H2 and Windows Server 2025.

Up next, we have the Safe OS recovery update and unlike the last time, Microsoft does not note any specific fix on this one as the general changelog is back. It writes:

KB5064097: Safe OS Dynamic Update for Windows 11, version 24H2 and Windows Server 2025: August 29, 2025

 

Summary

 

This update makes improvements to the Windows recovery environment (WinRE) in Windows 11, version 24H2 and Windows Server 2025.

Microsoft notes that the Recovery updates as well as the Setup updates will be downloaded and installed automatically via the Windows Update channel. You can also avail them manually on Microsoft's Update Catalog website: KB5065378, KB5064097.

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Posted Tuesday 2 September 2025 at 2:39 am AEST (my time).

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