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Microsoft probes Windows 11 boot failures tied to January security updates
Some machines are failing to start after security updates, prompting yet another Microsoft investigation Microsoft is investigating reports that its January 2026 security updates are leaving some ...
January update triggered UNMOUNTABLE_BOOT_VOLUME BSODs, leaving some Windows 11 PCs unable to boot. A failed December update rollback left devices in an improper state, and January's patch worsened it ...
Get the whitepaper Boot Failure Boot Issues BSOD KB5077181 Microsoft Patch Tuesday UNMOUNTABLE_BOOT_VOLUME Windows 11 Lawrence Abrams Lawrence Abrams is the owner and Editor in Chief of ...
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