"If you want to keep your system running at top speed for longer, you'll certainly need to have a defragmenter...ditching a free tool for the extra power and convenience of O&O Defrag is a definite must."
"I give this sosftware an A++ because unlike other defrag software this defrager is not just another cut up version of the Windows Defra application. O&O has its own interface that is loaded with extinsive defrag capabilities."
"Would you like to make your computer up to 50 percent faster? Our Test Winner, "O&O Defrag V8 Professional", was even able to increase performance by up to 65 percent. Other programs, like the Windows XP defragmenter, brought almost no improvements."