I decided my old PC would go to my brother, so I decided to do a drive wipe on my new PC because it just seemed easy. Anyway, I decided to also install W10 on the drive while it was plugged in so I wouldn't have to do it on the old PC. Turns out, I forgot Windows doesn't like to tell you things and I also forgot that installing a new OS meant the boot record had to be updated. So windows is throwing a fit because it can't find the other drive with Windows, and I tried to repair the boot record using the repair CMD but it doesn't even recognize that there is another OS installed on my M.2 and /fixboot refuses to work. Any help?