Besides causing slowdowns, fragmentation makes the disk drive heads move too much when reading files which leads to freeze-ups and system crashes. Therefore fragmented disks often become a bottleneck of the system performance. Hard disks are by far the slowest component in your computer. After a large portion of a disk has been used, most of the subsequent files and folders are saved in pieces across the volume. Computers do not necessarily save an entire file or folder in a single space on a disk they're saved in the first available space. diminution of the life of the drive.Fragmentation is caused by creating and deleting files and folders, installing new software, and downloading files from the Internet. 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.

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