From CSO Online: Microsoft has corrected two August 2025 Patch Tuesday bugs that blocked Windows 11 upgrades and broke reset and recovery tools across Windows 10 and 11.
Microsoft has issued fixes for a pair of troublesome bugs introduced with its August 2025 Patch Tuesday cumulative security updates.
The updates — KB5063875, KB5063709, and KB5063877 — not only triggered installation errors that blocked some Windows 11 devices from upgrading, but also broke reset and recovery tools across both Windows 11 and Windows 10. The problems affected Windows 11 (22H2 and 23H2) and, in the case of reset and recovery failures, Windows 10 version 22H2 as well.
Together, the flaws caused headaches for end users and IT admins until Microsoft rolled out follow-up fixes, including an out-of-band (OOB) update.
“This update addresses an issue introduced by the August 2025 security update, in which attempts to reset or recover the device might fail,” Microsoft said in a release note published on Tuesday, August 19. The Redmond giant did not issue a standalone patch for the upgrade error, but marked the issue as resolved on August 18.
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