I have been using a Samsung 840 EVO 120gb SSD and until now I didn't really need to use more space than I needed. So I only have Windows 7 Ultimate on it and a couple of programs but I'm sure they don't take more than like 20 GB and then It should be around 20-30 for Windows I guess. Also in Bios it shows it has 120GBs but when I go to my computer it shows only 89GB. I have 25GB left from 89 which is sad considering it only has Windows on it and maximum of 20GB games, but even less. What can be the problem ? I'm thinking of formatting but I saw some posts about this and thought maybe it would be even worse. If any more information you need to help me ask anything.