Ok Disktrix has stopped responding with the problems I am having. Have not heard back from the developer in over 2 weeks. Avoid this software they evidently do not care that it will not complete any type of advanced defrag. The problem exists in version 3 and 4 and has not been fixed! 30% high performance with selected folders 50% archive types as well as archive filetypes like md5, iso, zip, r*. Directories moved next to MFT And the defrag refuses to complete so it's useless! And now Disktrix has stopped responding to my emails at first they were very helpful and having me send them defrag logs and crash reports now nothing. So this software is only ALPHA that is not getting fixed now it seems.