?It's not a secret that hard disks are the slowest part of a computer. That's because they have moving parts, unlike RAM and CPU. Fragmentation can significantly slow down a hard drive, since it forces the reading head to move more. As a result your computer becomes slower and you even might start experiencing freeze-ups and system crashes. That's why it's very important to keep the disks defragmented. Auslogics Disk Defrag is a free tool to fight disk fragmentation. It doesn't need to analyze the disk first, which makes it one of the fastest disk defragmenting tools available today. The program has a clear interface and is very easy to use. Fragmentation is caused by creating and deleting files and folders, installing new software, and downloading files from the Internet. 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. After a large portion of a disk has been used, most of the subsequent files and folders are saved in pieces across the volume. Disk Defrag Options Apart from basic disk defragmentation, Disk Defrag has an option to defrag single file or folder, lets you schedule defragmentation, and offers command line support. Command line options allow users to defragment multiple disks, specify how much CPU should be used for defragmentation, and generate detailed HTML logs. A comprehensive list of error codes is provided, so that system administrators can use the program in their automation scripts. Home users may find that they are more comfortable with the feature-rich built-in scheduler available in the program settings. The scheduler lets you specify when automatic defragmentation should be performed, which disks to defragment, and if a detailed report should be created. Auslogics Disk Defrag received awards from reputable websites like CNet, Majorgeeks, and Tucows, and lots of positive user reviews. It is available as a separate free tool or as part of Auslogics BoostSpeed - an award-winning computer optimization suite.