The Matrushka Theorem

Hey guys! So I was digging through my old projects last week and I stumbled upon an OS I had been working on in the 80s, or, rather, a disk image that used the OS I had made. I was feelin pretty nostalgic and decided to try it out. The thing is, it looks like the file has been corrupted (or something). Immediately after I boot it up, some random error-checking program starts trying to shut down the drive--I have no idea why, I didnt program that. And Im fairly certain no one else has had access ...