Defragging is an open issue with me. Roger the Hacker NEVER defrags his system, though he has so many terabytes in it I guess he doesn't have to. Me I do defrag, regularly. I downloaded trial versions of every different defragger I could find about 4 years ago and tested them all. The best was Perfect Disk 7 at that time. I am now using Perfect Disk 10, although 11 is available. I use 10 because that was the last version that would run on FAT32 partitions, and some of my machines have WIN98-SE - WINXP-PRO dualboots so they, and my IDE hotswap trays, have to be setup for FAT32 to keep thing compatable, though my SATA drives and Hotswap trays are NTSF.