My computer is a HP slate 500, with 2gb memory, 128gb ssd drive running windows 7 pro. A few days ago my computer began to freeze for no apparent reason. I ran chkdsk/f and it fixed a few things, but the freeze would continue. I ran a full scan of malwarebytes and windows defender, neither showed anything. Last night I tried to run sfc / scannow twice both times the computer froze. The first time it was a 50% the second at 81%. I tried again today and it got to 87% and the screen went black. I tried a system restore point, but that failed. I tried restore from system image and it failed. Tried startup repair three times all failed. I tried system repair disk it also failed. I tried to do a clean install with the Windows 7 pro disk that came with my computer and it locks up at the installing point. Any advice?