When I look at the files on my hard drive, it shows they use only 60 GB disk space. However, when I look at my disk, there are 120 GB used. In other words, the files themselves account for only 60GB, yet the hard drive itself shows 120 GB used. My recycle Bin is empty. Any reason why this would occur? Yes, I erase 55 GB and then restore about 55 GB recently, but these files were erased and then restored.

Any idea why the discrepency between 60 GB in data files, but used hard drive space of 120 GB?