I'm trying to clean up my C: drive under Windows 10, and I keep running into disk space that is used up, but I can't figure out by what. Here's a prime example: Windows Explorer is telling me that the various profiles under C:\Users are using up a lot of disk space. But when I go into the individual folders, I can't find where all these GBs of files are hiding out. Depending on how I query the folders, I get different answers.
If I right-click C:\Users\UserA and go to Properties, the disk size is 32.4GB.
If I browse to C:\Users\UserA and select everything in there and right-click--Properties (adding up everything in the folder), the disk size is only 21.5GB.
Where are the other 11GB?
Another profile shows 8.42GB one way, but only 3GB if I add up everything in the folder.
Basically I have dozens of GB of used space that I can't find, and can't clear out. I keep maxing out my C: drive because of this. Disk Cleanup has not helped. Is there another better way to do this? Hoping to stop short of re-installing Win10.