Game won't start after the last minor patch

I did poke around at the permissions, and disabled Read-Only. I am using the built in elevated administrator account, I think. I remember enabling that at some point in the past, but I am not sure if I did that before or after the last time I reformatted.

Someone also mentioned the possibility that my user account is corrupted(I didn't even know that was a thing that could happen), but I created and used another account and ended up with the same result.

I am completely stumped.