Disk fragmentation causes crashes, slowdowns, freeze-ups and even total system failures. Manual defragmentation just isn't practical-it takes too long. Diskeeper is the the number one automatic defragmenter Disk fragmentation causes crashes, slowdowns, freeze-ups and even total system failures. Manual defragmentation just isn't practical-it takes too long. Diskeeper is the number one automatic defragmenter that runs undetectably in the background and makes the problems of fragmentation go away forever! Diskeeper is packed with features and new technology that keep your systems running at top speed and protect critical system files, ensuring like-new levels of performance. Your systems can perform like new again-get Diskeeper 9 and see!