How To Repair A Damaged Hard Drive Windows 7?

How To Repair A Damaged Hard Drive Windows 7? Unplugging and re-plugging the external HDD or USB drive. Uninstalling and reinstalling disk drive. Running hardware and device troubleshooter. Running disk scan for hard drive errors. Running CHKDSK command. Can a damaged hard drive be repaired? Hard drive repair is possible, but they should NOT be