I used the command prompt as admisistrator and typed in CHKDSK /f /r, after restart computer locks up on the count down to start scan at #1. After a hard shut down I pressed F8 and tried to run CHKDSK /f /r again at the command prompt in the System Recovery Options. I recieved the fillowing message
"Cannot lock current drive. Windows cannot run disk checking on this volume because it is write protcted."
I have windows 7 64 bit OS
Thanks for your help with this, Dan