DudeFraggler

I have the same problem, it seems any 4GB+ file on exFat won't be defragged. "Defrag aborted. No files were defragmented. The operation cannot be done." I tried using other software before and PerfectDisk has the same issue but it then marks the status as "Unmovable". None of the alternatives help. Almost makes me want to switch to NTFS even though I dislike the format. I have many big MKV files and the total drive is 15% fragmented. Because I hardly ever touch the files I want them all in a nice bulk at the start of the drive for further additions later. If this is a bug with exFat then I suppose none of the software can ever do it?