How Do I Check and Fix Errors on Hard Drive?

The first sign that a hard drive is going bad is logical errors found using a utility
like CHKDSK.
The CHKDSK Utility can check and fix hard drive errors. CHKDSK scans the hard drive
corrects logical sector errors, marks bad sectors that cannot be fixed and moves data
to safe, healthy places on the hard drive. This utility does not operating automatically –
users must manually start it.