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

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

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

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

Microsoft is shifting focus to fixing Windows 11 performance and reliability after months of buggy updates, boot failures, and growing user frustration.

Microsoft has linked recent reports of Windows 11 boot failures after installing the January 2026 updates to previously failed attempts to install the December 2025 security update, which left systems ...

Discover how to safely convert MBR to GPT without data loss in Windows 11. Follow our step-by-step guide using built-in tools and third-party software for a seamless upgrade to modern partitioning.

Use Automatic Startup Repair Verify the boot order Verify the hardware connection Use System Restore Repair the computer using Installation Media To learn more about these tips and tricks, continue ...

Here are the best free boot repair software and tools that you can use to fix boot issues on your Windows 11/10 PC: The first tool that we would like to list here is the Windows built-in Startup ...