Don't know why this was so hard to find. Gruska even had the correct name, I think. But this is, apparently, the only decent freeware program to report hard drive usage in a manner conducive to freeing up some space.
Every hard disk is too small if you just wait long enough. TreeSize tells you where precious space has gone to. TreeSize can be started from the context menu of a folder or drive and shows you the size of this folder, including its subfolders.
[ JAM Software - Windows Freeware ]
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