Windows 11 January 2026 updates may cause boot failures on some PCs. Microsoft is investigating issues linked to KB5074109.

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Windows 11 KB5074109 (January 2026 Update) is causing major issues on some PCs, and Microsoft has more details to share.

Windows 11 runs into another disastrous bug with its latest update — Microsoft admits an 'issue in which devices are failing ...

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Microsoft is investigating reports that some Windows 11 devices are failing to boot with "UNMOUNTABLE_BOOT_VOLUME" errors ...

KB5074105 fixes a critical Windows 11 issue where Explorer.exe could freeze at first login, leaving users without a taskbar or desktop.

Microsoft issues second emergency patch for Windows this month - update your PC today ...

Are you getting the “Startup repair couldn’t repair your pc” error on your Microsoft Windows computer? There are several factors that can cause this problem ...

Another week, another big Windows problem.

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