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The update delivers improvements to files that can help in recovery of the OS.
Neowin
@ssc_combater007 ·
Aug 1, 2026 17:42 EDT
Earlier this week, Microsoft released the newest Windows 11 preview update under KB5101684. Following that, the company is promising big improvements to RAM consumption, as it is evident that running Windows 11 on a minimum-spec PC is no longer possible.
Alongside the D-update, Microsoft also released a new dynamic update. 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 only a recovery update was released for Windows 11. The company writes:
“KB5102117: Safe OS Dynamic Update for Windows 11, versions 24H2 and 25H2: July 28, 2026
This update makes improvements to the Windows recovery environment (WinRE). After installing this update, the WinRE version installed on the device should be 10.0.26100.8971.”
Microsoft notes that both the Recovery and Setup updates will be downloaded and installed automatically via the Windows Update channel.