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New dynamic updates for Windows 11 versions 25H2 and 24H2 were released by Microsoft this past week under KB5127216 and KB5125758. arlier this week, Microsoft released Windows 11 KB5124010 optional non-security preview update. Though, as is usually the case, it may not be flawless as there are reports of games crashing within minutes or even seconds. An update for Office released alongside it under KB5002907 is probably even more problematic as it is accidentally invalidating licenses and deleting apps.
Regardless of the issues, accompanying dynamic updates are also out. For those who may not know, dynamic updates bring improvements to the Windows Recovery process in the form of Windows Recovery Environment (WinRE) updates, which are also called Safe OS updates. The dynamic updates also affect the Setup file binaries in the form of Setup updates. These Dynamic Update packages are meant to be applied to existing Windows images prior to their deployment. 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. This time both setup and recovery updates were released for Windows 11. The company writes:
"KB5127216: Setup Dynamic Update for Windows 11, versions 24H2 and 25H2: September 22, 2026
This update addresses security vulnerabilities in Windows setup binaries or any files that setup uses for feature updates in Windows 11, version 24H2 and Windows 11, version 25H2. KB5125758: Safe OS Dynamic Update for Windows 11, versions 24H2 and 25H2: September 22, 2026. This update makes improvements to the Windows recovery environment (WinRE). After installing this update, the WinRE version installed on the device should be 10.0.26100.9545." Microsoft notes that both the Recovery and Setup updates will be downloaded and installed automatically via the Windows Update channel.