Question : Problem: Freezing problem, Disk or Virus?

Hi
I have a laptop that keeps freezing, either half way through booting or during use.
I have run virus scans but these have produced no issues.
I have tried running a disk check or scan but am unable to. When I try I get a message saying: "windows was unable to complete the disk check", I have closed all other apps and even tried in safe mode but still cannot run this. It runs ok on another partition but not on C:
I am also unable to run a disk defrag on this drive. This is suggesting that there is something wrong with the drive.
Please can you help, I have run out of things to try

Answer : Problem: Freezing problem, Disk or Virus?

Your hard disk may be on the verge of failing. I would suggest running a disk diagnostic utility. Most disk vendors have these for free.

www.seagate.com
www.maxtor.com
www.westerndigital.com
www.quantum.com
www.fujitsu.com

For example:

Seagate
http://www.seagate.com/www/en-us/support/downloads/seatools

Western Digital
http://support.wdc.com/product/download.asp?lang=en

The diagnostic tools are usually going to have to be written to a floppy disk.  If you don't have a floppy drive available (even a cheap USB one) or cannot boot to one, then you could try the diagnostic tools on The Ultimate Boot CD:

http://www.ultimatebootcd.com/