bonniew88w :
https://www.dropbox.com/s/x8b9jclib4c3bxe/Screenshot%202017-11-02%2001.26.01.png?dl=0
wow.... I can see my missing 50 GB is in two unused partitions. Is there a way to get that space back?
Thanks so much for spending time on this....at least I know now what the problem is and can stop cleaning and recleaning my C drive.
No, you're not missing 50GB anywhere.
Let's disregard everything but Disk 1, the 128GB SSD.
Disk 0 - 1TB HDD
Disk 2 - 2TB HDD
Disk 3 - 3TB HDD.
Disregard those.
For your Disk 1, containing the C drive:
That is a "128GB SSD", correct?
Of that, 11.7GB is used up in the Recovery Partition. You can't use that.
Your C partition is 107GB, of which 9.51 is free.
Correct?
Your WinDirStat window is missing a couple of key elements...the pagefile, hibernation file, and System Restore points.
Those could easily consume your potential missing space.
If you have not purposely turned
hibernation OFF, it is ON by default. And sucking up space equal to your physical RAM.
System Restore points.
Check that and see what it is set to. I've seen systems where it is set to consume 50% of the drive space.
Turn it OFF here: https://www.sevenforums.com/tutorials/819-hibernate-enable-disable.html