My 4 year old 120GB SSD shows 88GB full when I check it in "Computer" and right click for drive properties. When I actually open the drive and check the size of each folder in it manually (including hidden folders), I only find 58GB of files. Any ideas? Before you suggest it, I've run cleanup, I've deleted Temp, etc, but this is pointless as (as previously stated) this size discrepancy isn't coming from files I can actually see to delete.