Microsoft released Windows 11 KB5089593, KB5087594 updates for OS recovery

These updates deliver improvements like those to the setup files and also help in recovery of the OS.

Earlier this week Microsoft released its newest Patch Tuesday updates (KB5087544 on Windows 10 and KB5089549 on Windows 11). The official Media Creation Tool has also been updated. Word of warning though, the Windows 11 update has been confirmed to be causing installation problems for certain users. Microsoft has issued workarounds.

Alongside those, Microsoft also released new dynamic 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 recovery and setup updates were released for Windows 11 as well as Windows 10. The company writes:

"KB5089591: Safe OS Dynamic Update for Windows 11, version 26H1: May 12, 2026

This update makes improvements to the Windows recovery environment (WinRE). After installing this update, the WinRE version installed on the device should be 10.0.28000.2110.

KB5089593: Safe OS Dynamic Update for Windows 11, versions 24H2 and 25H2: May 12, 2026

This update makes improvements to the Windows recovery environment (WinRE). After installing this update, the WinRE version installed on the device should be 10.0.26100.8455

KB5087594: Safe OS Dynamic Update for Windows 11, version 23H2: May 12, 2026

This update makes improvements to the Windows recovery environment (WinRE). After installing this update, the WinRE version installed on the device should be 10.0.22621.7077

KB5087593: Safe OS Dynamic Update for Windows 10, versions 21H2 and 22H2: May 12, 2026

This update makes improvements to the Windows recovery environment (WinRE). After installing this update, the WinRE version installed on the device should be 10.0.19041.7290.

KB5087592: Safe OS Dynamic Update for Windows 10, version 1809 and Windows Server 2019: May 12, 2026

This update makes improvements to the Windows recovery environment (WinRE). After installing this update, the WinRE version installed on the device should be 10.0.17763.8751.

KB5087590: Safe OS Dynamic Update for Windows 10, version 1607 and Windows Server 2016: May 12, 2026

This update makes improvements to the Windows recovery environment (WinRE). After installing this update, the WinRE version installed on the device should be 10.0.14393.9138."

Microsoft notes that both the Recovery and Setup updates will be downloaded and installed automatically via the Windows Update channel.

Source

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Posted Sunday 17 May 2026 at 7:40 am AEST (my time).

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