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

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

Round and round we go.

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

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 ...

Can’t boot Windows using a USB drive? If yes, you have come to the correct page. In this post, we will help you find a working fix for boot issues with USB. To boot Windows using USB, you first need ...

Windows 11 KB5074109 is wreaking havoc thanks to several issues, with the most serious keeping users out of the operating ...

The following suggestions will help if your Windows 11/10 PC won’t boot after upgrading or installing a new SSD. Make sure that the SSD is installed correctly Is the SSD showing in the BIOS? Change ...

Posts from this topic will be added to your daily email digest and your homepage feed. If you can’t get your computer to start up properly, here are some methods to try. If you can’t get your computer ...

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