Keep your computer running like new. PerfectDisk Professional's industry-leading defragmenting features speed up everything you do, from browsing the web to downloading music and editing pictures. Plus, you'll see faster machine boot times and fewer software crashes and hangs. PerfectDisk Professional's patented SMARTPlacement feature is the most sophisticated defragging solution available. It identifies the files you use most and then organizes them according to your unique usage patterns. This comprehensive process yields faster subsequent defrag passes, quicker computer boots, slower rates of fragmentation, reduced resource consumption and improved performance of desktops and laptops.