How can this be. There are no files on this hard drive however it reads 120Gb used with no space remaining. Initially I had some Norton Ghost backup images stored on this, then after I deleted them manually in Windows the hard drive didn't free up any space. I used Norton Ghost 9.0 to backup and am running WinXP Pro with NTFS. The offender is a 2nd internal HD. Just to add if I format it, naturally the space re-appears again. But does the same if I put on more images and then delete them, the space just dies away as you put on and delete more and more things.