Problem with garbage collection/TRIM?

Jasonator190

Honorable
Nov 27, 2012
13
0
10,510
I have a 90 GB SSD that shows as 83.7 GB on my computer, which isn't a problem.
Storage_zpsfa60dc6c.png
What is a problem is that it says that I have have ~77 GB on the drive and when I went in to clear some of that out, It says I only have ~46 GB on the drive, even with hidden folders shown.
Storage2_zps55c05960.png
What does this mean and how can I fix is, as I need more space.