First time I ran defraggler, and the next few times, everything was fine. Then I decided to play with moving large files a bit, and defragging free space, and since then whenever I run defraggler, it spends a LOT of time just moving the same exact large files. I've turned off the "move large files" option, just in case setting it to 500000MB files as well. I don't defrag free space anymore. And still, every time after it finishes defragging and I try to defrag again (after Steam has done a bit of downloading) I see the same exact files being moved around. Defraggler might claim that defragging is 100% done, 0 files with 0 fragments are left, and it's still shuffling those files. What's going on?