There is more to CHKDSK than just CHKDSK!
CHKDSK has three levels of ‘stuff.’ Using a function hidden in the disk drive’s properties, there are two more levels. That’s what I’m using now and a whole lot of bad clusters have been discovered and replaced!
It is a s-l-o-w process. My guess is 6-8 hours to completion… but it’s just a guess.
Do these clusters mean the hard drive is slowing dying? Is this a small event which is now under control? I am currently clueless.
This video demonstrates the process I used to get where I am.