The files saved on your hard disk will become fragmented for various reasons. Because of this, your hard disk is extra busy gathering data from different fragments located at various locations on the hard disk in order to access your files. This process degrades your hard disk performance and overall system speed which gets gradually worse over time. In addition, the read/write speed of your hard disk varies by location and the files on your hard disk are randomly distributed. Therefore, you lose any potential speed gains from other system optimization programs. Learn more.