Hey Piriformers, I'm using the Defraggler as the Beta that it is, based on a long-term relationship with CCleaner. Question: what is the method by which Defraggler determines/prioritizes files which have fragmentation? The question has it's roots in the performance of other defragmentation tools. For instance, ***logics Defrag Tool cruises through my drive and takes note of 0-70 fragments (with regular defragging), while the Defraggler finds 1Gbyte of fragmented files on my C:\. I do like the feature of specific file/folder defragging for heavily used programs with few dependencies. D.