Okay, so I don't remember much about this because I asked on the Steam fourms and I forgot about it a bit. But here is what is happening:
I was playing The Binding of Isaac, I quit for a bit after a successful azazel run, and I assume while the game was dormant, an update came out. Later after that I tried to play, but I got a corrupt save error. I tried to verify game cache. I forgot the result. But it was a failure. Obviously. I uninstalled, and reinstalled, fiddled and bam-boozed, slammed my chair and put my hands into my face, after maybe 10 mins of trying to work on it, it became a disk read error. If I uninstall and reinstall it just pauses the download when it reaches 100. Thus for I can't verify game cache.