"Repair your computer" from media creation tool doesn't start

I've been having an issue with starting my windows today, as a result of the "reboot and select proper boot device today" error, to which I have already tried rearranging boot disk order in bios, not working. If anyone knows a way to fix that, that would be great, but that is not the relevant problem here. I'm trying to back up my C drive so I can fix a (presumably) corrupted windows booter, and I've used the media creation tool to put a windows installation on a USB drive, however when it starts and I try clicking on the "repair your computer" button, it just goes to a blue screen and does nothing. I've waited on this for around an hour and tried multiple times again, but it is still the same and never goes to the windows recovery environment as shown in this video.