Microsoft has acknowledged a critical reliability problem introduced by its August 12, 2025 Windows security rollup that disabled core recovery features on multiple client builds of Windows 10 and Windows 11, and issued an out‑of‑band (OOB) cumulative update — KB5066189 — to resolve failed Reset...
august 2025 updates
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kb5066189
out-of-band update
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Microsoft has confirmed that August’s Patch Tuesday rollup introduced a regression that broke Windows’ built‑in recovery flows — including Reset this PC, the cloud-based Fix problems using Windows Update, and management‑initiated RemoteWipe — and shipped out-of-band emergency fixes days later to...
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kb5066187
kb5066188
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oob updates
out-of-band
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reset this pc
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ssdstorageissues
windows
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windows update
winre
Microsoft's August Patch Tuesday set off a chain reaction: the security update that fixed scores of vulnerabilities also broke Windows' own recovery tools for many users, and Microsoft was forced to ship out-of-band (OOB) emergency patches to undo the damage. The recovery failure — which could...