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

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

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

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

Everyone knows you need to keep your operating system up to date, but what happens when a company botches the update and ...

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

This comes just hours after reports that another emergency update has been issued by Microsoft to affect other problems ...

Microsoft released unplanned updates over the weekend. They correct errors in the January patches and bring new boot certificates.

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 ...

If you’re stuck in Diagnostic Startup mode on your Windows 11/10 PC with an error message saying your PIN isn’t available, we will show you how to troubleshoot ...

If you encounter a Blue Screen on first boot only when you start it the first time in WIndows 11/10, use the following fixes: Clearing CMOS usually fixes booting issues. You can also try this. Please ...