|I agree that the two are not related.|
Disk errors can be caused by a drive problem or a memory problem.
I would suggest running a memory test first.
There is a version to create a bootable floppy diskette and/or an ISO for creating a CD.
Run it overnight and any failures are unacceptable.
Then run chkdsk /R on the drive. It will check every sector on the drive for reliability. Note that it could take many hours.