I have the same issue with Defraggler, only mine is a wee bit different. I was at 27% fragmentation, ran Defraggler(which I have tested on 13 various machines to date with a range of results) and when the program ended(overnight) it was 32% fragmented. This particular machine runs Win7 Home Premium, has its pagefile on a secondary hdd, and I shutdown all nonessential background processes and programs(including ESET Smart Security) before defragging. I have had this particular system down to 5% within the past month with no major changes to any of the system files since, no viruses or malware of any sort. Any sensible insight here would be interesting.
