SOS: Drive space shows 156GB used but drive contents empty

Oh yeah it's right. The 5 files accounts for the two subfolders which I included in the later CMD prompts.
The 3 files were from the CMD prompts on just the folder that's supposed to contain the media files.

I found a solution to the problem. It's a work around but it worked.
Because the files are media files captured through an editing software (AVID Media Composer). I was able to go into AVID and tell it to re-import the original files which I had stored in another drive. And now I'm back online!!
BTW I reformated the F dirve before doing this (in the hope that it will wipe out whatever errors it had).

The alarming thing is that what if the affected drive was my original files or other drives containing personal documents, then I'm toast. It only worked because AVID could see the original files in the other drives and link back to it.

Your ideas prompted me to research the problem more and see if there's any work around.
I still don't know why this happened and haven't even heard of such a thing before but at least I'm back online.

THANKS!!

Cool. Thanks again.