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

Round and round we go.

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

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

In a surprising turn of events, Microsoft has confirmed that its January 2026 security update, KB5074109, is causing significant boot issues for some Windows 11 users. This latest development ...

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

Use Automatic Startup Repair Verify the boot order Verify the hardware connection Use System Restore Repair the computer using Installation Media To learn more about ...

As we continue to dive into the world of Windows XP booting on Intel-based Macs, we reiterate the use of caution when using the beta status Boot Camp on non-experimental systems. Apple will not ...

If you receive an error message – Failure when attempting to copy boot files, then this post may be able to help you fix the problem. BCDBoot is a command-line ...