From O&O Software:
The new O&O Defrag V8 Professional Edition activates performance you thought was lost forever - quickly and reliably. Within a few minutes, O&O Defrag V8 Professional Edition optimizes your hard disks with Windows XP, Windows 2000 and Windows NT and rejoins the file fragments together. O&O Defrag V8 Professional Edition offers you great ease of use and a multitude of functions. If the user wishes, they can take advantage of O&O Defrag's new OneButtonDefrag technology with everything from automatic configuration to sophisticated optimization strategies - everything you'd expect from the market leader in the field of hard disk optimization. The new OneButtonDefrag automatically detects the optimum defragmentation configuration and adapts itself to the demands of the individual computer.