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#11
What were the results of the Disk Check?
Hirens Boot Disk and Ultimate Boot CD both have freeware tools to diagnose and repair HD and can also be written to bootable flash stick: Hiren's BootCD From USB Flash Drive (Pen Drive) » www.hiren.info
But if Seatools continues showing bad sectors and Disk Check does not show a clean disk then I'd replace the HD. An SSD gives the best performance boost to be had today.