If you recently upgraded or changed your CPU, and your Windows 11/10 computer is not booting up, then this post will help you fix the problem.

If your computer is not booting right after updating the BIOS, here are the methods you can use to troubleshoot the issue.

It will boot to Win 7 in 30 seconds, unless you tell it to boot to Win XP. This is one of several reasons why I would put Win 7 on a computer other than your DVR computer.