My windows 7 PC was working well until a few weeks ago when some of my steam games would start to load and then never respond. after a few weeks of trying I decided to just wipe my whole computer to try and solve the problem. Well after putting in the installation disc I got a message saying that I couldn't upgrade a 64 bit computer to 32 bit and a second message under it saying I couldn't upgrade 32 bit windows to 64 bit windows. It also wont let me receive windows updates. (I was hoping that might solve things)