I have a homebuilt PC running Windows 7. It has been running just fine until yesterday. It is acting like the keyboard is stuck. I could barely open explorer or close any windows and couldn't see it typing anything specific. I ran my hand over the keyboard as this usually will loosen a stuck key and this did nothing. So I rebooted my PC. Upon reboot I get the beeps that you hear when you push a key on the keyboard, not to be confused with POST beep codes. Windows boots still getting continuous beeps and Windows Password field will just type in a password just like a stuck key. So I reboot and while it is shutting down, I disconnect the keyboard let it power up and I get the same thing with the keyboard disconnected. I have tried to reinstall windows but I can't; after windows expands it's files, the installation basically cancels itself, reboots and goes through it all again. I am not sure what else to check and would appreciate any insight.