After purchase, when first running Defraggler, my drive was about 4% fragmented. I run Defraggler once or twice each day. Now a little over a month later, I'm can't get less than 15% fragmented. Typically there are 10 to 15 files causing the fragmentation. However, if I defragment them individually, I can still only get to 15%. Why does the fragmented portion keep increasing and what can I do to make it go the other direction? My disc is a Samsung SAMSUNG MZ7PA128HMCD-010H1