Stuck on an infinite loop of "Preparing Automatic Repair" on Windows 10

I'm reposting this from r/windowshelp because I have no idea what to do.

For the past day I've been stuck in an infinite loop of Preparing Automatic Repair, I can't get to troubleshoot options/safe mode (restarting three times and f8 repeatedly do nothing), all scans that I can perform without the OS actually on say everything is fine, and I can't do anything with BIOS. Please help, because there seems to be no solution.

Edit: messed with some things for a while, and I've managed to get to a command prompt. Hopefully this should be the end of the problems.