I have a western digital 250 gb hard drive although it reads at 232 gb. I went to perform disk cleanup on it and noticed that it only had 44.84 gb free and 184 gb used. I knew this was wrong but double checked. On the drive I have 12 folders, Pictures, Programs, DVDs, Videos, Music, Games, Books, My Shared Folder, Download, Vice City Mods, and Login & Boot Screens. After adding up these folders I come up with 67.21 gb. Now according to my math 232 - 67.21 = 164.70 not 44.84 So what happened to my extra space? I have system restore turned off, ran spybot, adware, and a virus scan and nothing came up. Also I have my OS on my other drive so I know that's not the problem. What can I do?