My HDD is full, but I have no files (see image). I used WhatSize to take a look, and it didin't show anything, but said the drive is full. Everything in my user files is gone (music, pictures, and emails in other location are OK). How can I recover that space? What happened? It gets more complicated. I did something stupid. I use SugarSync for online backup. I removed my computer from sugarsync (no longer set up to sync with the service) and deleted my files (permanently) from their servers. I thought that since I had told them NOT to sync files, that I would be OK, but Sugarsync deleted all of the backed up files in my drive! I was furious, mainly at myself for screwing around with this stuff late at night. I am trying to sort things out and see if I can recover them from Sugarsync (unlikely, but my account there is 200%+ full of data, so something is in there). I had all but two files backed up on an external drive, and unfortunately, these are ones I would really prefer not to have to remake. It's no big deal, though. The problem is that now I cannot copy backup files onto my drive, because it is full, so I am stuck. Any advice?