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

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

Round and round we go.

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

Topher, an avid Mac user for the past 15 years, has been a contributing author to MacFixIt since the spring of 2008. One of his passions is troubleshooting Mac problems and making the best use of Macs ...

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 ...

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 ...