No matter how powerful your PC is, fragmentation will slow it downit's just a matter of time. In fact, the harder your system works, the faster fragmentation builds up. Manual, single-pass defragmenters simply cant keep upin order to maintain performance; youd likely spend more time defragmenting than you will using the computer! Diskeeper, the Number One Automatic Defragmenter, simply makes the problems of fragmentation go away forever.