A terrific programmer named Steve Gibson created a program anyone can run on their computer that will check the health of our computer hard drive, but save any corrupt data siting on bad sectors and move it for future use. It actually will bring the drive back to a reasonable state of health.
Please consider purchasing it for your system today. It will not harm your machines and you can run it on every PC in the house. His site is completely reliable, safe to purchase from,and helpful to try and use this SpinRite tool.