The volume appears to contain one or more unrecoverable problems
After running the chkdsk command you may get the volume appears to contain one or more unrecoverable problems error. This error is an indication of the hard drive or partition being checked containing a serious error that the chkdsk utility is unable to resolve. This could be an indication of a failing hard drive or serious corruption with the drive.
The hard drive can be tested using specialized disk drive utilities designed to test and fix failures if possible.
If the hard drive passes the tests or you believe the hard drive is not at fault we suggest erasing everything and reinstalling Windows onto the computer as it's likely not a hardware failure but a serious disk corruption.