My computer says that the C: drive has 22.9GB free of 113GB, but this seems wrong because when I check and I add up the memories taken up by each folder in the drive the total turns out to be less than 7GB, which should mean that I should have about 106GB of free space. Whats the problem? Also, a couple of days ago it says I had 28GB left and now it says 22.9GB of 113GB. I haven't installed much in the computer. Has anyone else had this problem?