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.

One of those troubleshooting tools is Startup Repair, and this is the specific feature that QMR is improving on. What Startup Repair does is look at key settings files that Windows uses to boot up, ...

If your Windows 11/10 PC won't boot after installing the graphics driver, try to roll back the graphics driver. These fixes will help you resolve 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.