Windows 10 update failure, system keeps restarting.

I have been delaying the latest Windows 10 update for several days but today I finally started it. PC got stuck at 75% and restarts repeatedly. On restart it immediately shows its at 75% and restarts again.

After several hours I turned it off and when turned on again it immediately resumed the update and restarted repeatedly. Windows seems inaccessible because it never gets to the log in screen but I can get to the BIOS. I have no idea how to stop the update and my pc is unusable.

Edit: So I was able to log in on my old hard drive, the issue seems to be that I recently got an SSD for Christmas and cloned the hard drive over to it. I suppose I should have mentioned that before but I didn't think that was an issue since the drives should be identical. I'm going to wipe and reclone it and won't lose much data. Does anyone know how to make a cloned SSD work with updates? I assume it needs to be verified somehow, but help would be appreciated.