Hard Drive Utilization Confusion

tomctucker

Reputable
Jun 30, 2014
3
0
4,510
My drive "C" shows 456GB capacity but only 25GB available/unused.

When I sum up ALL (including hidden) folders on drive "C", they total about 86GB used.

I should have 379GB available yet only 25GB is reported.

What mysterious process is consuming space on my HD without identifying itself?