The ultimate edition for power users with high end computer systems. Provides optimum performance, reliability, computer longevity and energy conservation at all times. Get the added defrag power of the Terabyte Volume Engine® (TVE) technology, along with fragmentation prevention, instant defrag and fast file access speeds. Diskeeper® 2011 Pro Premier edition data performance software provides unparalleled peak performance for power users with high powered workstations, delivering the ultimate in performance and reliability to those who appreciate it most. Prevents up to 85% of all fragmentation before it is created and instantly defrags the rest, bringing your computer speed and reliability to better-than-new levels.