I will try this And if that dont work I have a bootable usb with win 10 install but I don't know the product key for the pc that I'm trying to fix. I'll let you know how it goes.

ok i was able to select boot in safe mode I think i saw the desktop for a millisecond and it restarted again

im using a custom build pc with a Asrock motherboard and f11 just open boot options.

how do I boot in safe mode?

My PC was running slow so I decided to try to reinstall windows 10 using the recovery in the control panel. After it set everything up and made sure there was room on the hard drive it installed but...