I should add that I am able to enter BIOS but booting Safe Mode will NOT work either.
My mother's computer has been having problems. It's loud, very slow and loops a reboot after the "starting windows" shows. I've cleaned the hardware (was necessary) to see if it helped but it didn't. I CAN access the bios and have tried recovering via the backup CD/DVD. After booting from the CD, it shows windows loading files and then goes to the recovery. However, it keeps loading and keeps me waiting (for as long as 4 hours +) without going further. This may be because of an unreadable CD though, it's quite old and full of scratches.
The computer itself is about 4 years old, but always ran pretty smooth up until this week. Hadn't installed Win10, so the OS is still Win7, it didn't happen during updates (that I know of), just out of the blue.
Update: Found a good CD, made it through language selection and waiting at "starting setup" now...