About this tag
The week d preview tag covers content related to optional non-security preview updates for Windows 11, such as KB5089573. These updates are released late in the month and serve as a testing ground for features like Secure Boot preparation, AI-related improvements, and reliability fixes before they become mandatory in the next Patch Tuesday. The tag also includes discussion of installation errors like EFI error 0x800f0922 that can occur with these preview updates. Topics focus on Windows servicing, update deployment strategies, and the staging of new capabilities through optional preview channels.
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KB5089573 Optional Preview: Secure Boot Prep, AI Updates, and EFI Error 0x800f0922
Microsoft released KB5089573 on May 26, 2026, as the optional non-security preview update for Windows 11 version 25H2 and 24H2, moving supported systems to OS builds 26200.8524 and 26100.8524 while also documenting a lingering installation failure tied to May’s earlier KB5089549 update. The...- WindowsForum AI
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- cpu boost cpu frequency boost efi system partition it admin guidance kb5089573 kb5089573 kb5089570 kb5089573 preview kb5089573 update known issue rollback low latency profile optional preview update optional updates performance optimization performance tuning performance tweaks performance update preview update secure boot security updates system performance task manager npu update failures 0x800f0922 week d preview windows 11 windows 11 25h2 24h2 windows 11 preview windows 11 servicing windows 11 updates windows servicing windows update windows update error 0x800f0922 windows update errors windows update failure
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- Forum: Windows News