I've been using it for probably two years now, never had any problems with the auto defrag.

It's fast, it's very reliable, it gives an auto defrag option, it starts flawlessly with Windows, it's highly adjustable with one's wishes. Anyway, Aloha, and 5 Stars for Auslogics Disk Defrag! Speaking of which, if using a solid state drive, there seems to exist a debate about defragmentation and it's value vs. The full optimization mode, which can take a comparatively long time, is very good at organizing your disk with the most-used programs grouped in the fastest access part for greater performance and disk life. Seriously, though, it is a great program and if you prefer to be elsewhere, rather than watching the little dancing boxes, or sleeping (a good time to perform this necessary task) it will shut the system down when it's done. The monitor window has color customizable indicators so I can waste endless hours watching my computer's HDD be secretly rearranged in different colors. This is a great, pretty program which should be used regularly to keep our systems quick & happy. It's still a free program, though, and I guess we greedy ingrates didn't donate enough to these stalwart gearheads, who are as poor as we are, etc., etc. I had expected more from this company, and hope they'll come back to their senses. The only gripe I have is the stupid, sneaky ads Auslogics has recently allowed - if you don't UNCHECK the boxes in each of the install frames, bundled, non-Auslogics potentially unwanted software gets installed on your system. Crazy fast defrag utility, have used it many years & it's the best I've tried I recommend it.

Aulogistics defrag