My computer locked up so I had to reboot and after the scandisk ran I now get the message: Cannot write Scandisk.log file to C drive the drive has been write protected by another utility. I cannot get the PC to boot up now without getting this message. How do I get rid of the write protection from C drive? I have already tried to re-format C drive but the re-format won't work because of the write protection problem. My hard disk in connected to the motherboard thru a controller.