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Lost space on external drive - Lost 1TB of 2TB drive
I have a WD Red 2.0 TB drive (1.8 TB formatted) and have been watching it fill up (%used) for some time now. I have lost 1 TB to "unknown" according to WinDirStat. VSS is NOT RUNNING, which I read about in the tutorial here: System Protection - Turn On or Off.
So, what could be eating this space and how do I recover it?
FYI - the usual litany - No viruses; Disk Cleanup was run; Drive diagnostics pass; Chkdsk, defrag, etc. all OK.
Also, the thing I use the drive for is to maintain program libraries. I perform a lot of temporary folder copies and delete old copies. The recycle bin is empty. Have no idea why this space is lost.