I don't understand where my free space on my SSD has gone. I bought a 120 GB SSD to be my boot drive. I got a notice in Word that I was running low on space. I go to Finder and it says that I have 111.19 GB used, 8.5 GB free. So I run Omni Disksweeper. It calculates GB differently than OS X does, but the data gibes--111.5 GB total, 7.9 GB free, 103.3 GB used. But then I "sweep" the drive, which analyzes each of the folders to tell me how much space each is using. But this sweep says that I'm only using 64.7 GB of space. So where is the missing 38.6 GB? The only thing I can think of is that Parallels took up that space and Omni Disksweeper can't read that portion of the SSD. The odd thing is that I cloned the SSD from my old boot drive and Parallels doesn't even run (I just tried to run Parallels for the first time since I got my SSD). If it is Parallels, how can I recover that space?