A Windows security update bug has prevented some Windows 11 24H2 and 25H2 users from booting into their PCs, requiring them ...

We previously reported on a bug that Microsoft said was creating a "limited number of reports" over a boot failure issue, in which users were greeted with an "UNMOUNTABLE_BOOT_VOLUME" stop code after ...

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

The fix is to reinstall Windows 11 with different security updates. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Add us as a preferred source ...

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

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

Another day, another bug in Windows 11 24H2. Early last week, Microsoft revealed the latest glitch to befall its newest flavor of Windows 11. And this one could keep you from downloading any future ...

Microsoft said my PC can't run Windows 11, but I upgraded in 5 minutes anyway - here's how ...

Microsoft’s first Windows 11 security update of 2026 broke shutdowns and some Remote Desktop sign-ins. Microsoft has released ...

Microsoft has linked recent reports of Windows 11 boot failures after installing the January 2026 updates to previously ...