PerfectDisk is a disk defragmenter with a variety of advanced disk management features. It supports automatic background defragmentation, flexible scheduling options, and boot-time defragmentation of locked system files. PerfectDisk's innovations, such as the patented SMARTPlacement optimization, free space consolidation with Space Restoration Technology, large drive support, and single-pass defrag, to name a few, continue to set the bar for the defrag market.
