Using Windows 7.
The external hard drive where I have my active folders reports that it has only 44.8 GB free of 931 GB total. This is what the bar and pie charts show. But I really don't have that much stuff on here.
So I ran WinDirStat and it shows a huge grey rectangle designated <Free Space> taking up 64% of the disk but amounting to 44.9 GB, even though 64% of free space should be about 600 GB free, not 44.9.
When I total up the folder space in Explorer, it looks like I should have about 64% free.
I checked the Manage Windows Backup data. It shows 89.90 GB data file backup, 193.21 GB System Image, 603.54 GB Other Files, and 44.87 GB Free space, for a total of 931.51 GB.
I guess my questions are: 1) why the discrepancy? 2) what do the Manage Windows Backup Data entries tell me? and 3) what does all of this tell me about clearing up space so that the bar and pie charts show about 64% of free disk space and the computer functions accordingly? I did turn off the automatic backup scheduling; it was on but had not backed up for more than a year.