You can use the Hard Drive Makers Testing Utility to Test the Drive
Hitachi / IBM - DFT "Drive Fitness Test"
http://www.hgst.com/hdd/support/download.htm
Works with all manufacturers
Western Digital "Data Lifeguard"
http://support.wdc.com/download/index.asp#dlgtools
Works with WD drives only
Fujitsu "FJDT"
http://www.fel.fujitsu.com/home/drivers.asp?L=en&CID=1
Works with fujitsu models only
Samsung "hutil"
http://www.samsung.com/Products/Hard...ties/hutil.htm
Compatability unknown...
Seagate "Seatools"
http://www.seagate.com/support/seatools
Works with Seagate drives only
If you have failures you will have to replace the drive.
If the Drive tests out OK then use this to wipe it. Autonuke should do it.
Darik's Boot and Nuke
http://dban.sourceforge.net/
Recreate your Partitions and you should be good to go.
< hopefully you are using Recovery CD's >
Rob