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

These days, Windows has a moderately robust method for managing the volume across several applications. The only problem is ...

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 ...

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

Microsoft is aware of an alleged issue that leaves PCs unable to boot and requires manual recovery after Windows 11 January ...

If you have multiple drives on your PC and they’re smaller than you would like, you can combine or merge two drives in ...

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

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

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

The most recent January Windows Update is broken on a number of PCs, but at least virtual machines don't seem to be impacted.

Microsoft’s new warning was spotted by Windows Latest. “In an updated support document, the company has confirmed that the update is indeed crashing some PCs.” This primarily affects commercial PCs.

It's not just January's one.