I am running the latest current version of Defraggler. After I moved my entire system over to a new, larger hard drive (500G Hitachi) I started getting errors during defrag. As soon as the counter reaches 88% (in complete defrag, not analyze, quick defrag works fine) the program aborts claiming lack of disk space as the issue. There is 385G free on the drive so I am sure this is not the true issue.
I have run through the usual testing modes, including a complete (5 stage) pass of chkdsk and am certain that the disk or file integrity is not the issue. The MS defragger runs normally but doesn't so as thorough a job as I would prefer. The same issue occurs in clean boot and safe mode as well.
Please check into this.