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

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

Troubleshoot Highguard launch issues with our guide covering Secure Boot, Easy Anti-Cheat, file integrity checks, and more.

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 ...

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

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

The Memory configured incorrectly error occurs when your Windows computer detects some issues with your RAM. This article ...

Do you see Event ID 1796 in your Windows 11/10/Server logs? If the Secure update process cannot complete and fails with an error message— The Secure Boot update ...

If Battlefield 6's Open Beta isn’t launching on your PC due to Secure Boot errors, you need to check and adjust some settings on your PC. This usually involves changing settings in your BIOS menu, ...

Aw crap. Somehow I made my computer unable to boot.<br><br>I had XP SP2 on partition 1, then I created a second partition using GParted and installed Vista SP1 on that. Everything is fine until I ...