- Quick specs
- Price: Free to try (30-day trial); $49.95 to buy (Buy it now)
- Operating system: Windows Vista, Windows NT, Windows XP, Windows 2000
- Date added: January 30, 2007
- Total Downloads: 241,663
- Downloads last week: 228
- See full specifications
A newer version of O&O Defrag Professional Edition is available.
(Download doesn't provide access to previous versions of this program.)
- Average user rating: stars out of 143 votes
See all user reviews
Publisher's description
From O&O Software :The new Windows Vista compatible O&O Defrag V8.6 Professional Edition activates performance you thought was lost forever - quickly and reliably. Within a few minutes, O&O Defrag V8.6 Professional Edition optimizes your hard disks with Windows XP, Windows 2000 and Windows NT and rejoins the file fragments together. O&O Defrag V8.6 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.
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User reviews of O&O Defrag Professional Edition 8.6
- Average user rating: 3.8 stars out of 143 votes
- My rating: 0 stars Write review
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Showing 4 of 4 user reviewsSee all 4 user reviews
This software version | All versions -
6 out of 9 people found this review helpful
Version: O&O Defrag Professional Edition 8.6
"Quality Defragment Programme"
Pros: Excellent interface.Easy to track defrag progress and one of the best disk management tools I've used.Very thorough and does the job admirably
Cons: None at all !!
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4 out of 7 people found this review helpful
Version: O&O Defrag Professional Edition 8.6
"Rubbish:- Doesn't work with Vista"
Pros: "Looks" like its working. Nice interface.
Cons: Try defragmenting a drive running Vista, and afterwards you end up with more fragmentation than when you started out. Either, the program doesn't work, or the analysis doesn't report the level of fragmentation correctly. Either way, this program is not Vista compatible and should be avoided, which is a pity, I quite liked this program when running XP.
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6 out of 10 people found this review helpful
Version: O&O Defrag Professional Edition 8.6
"Not Ready for Windows Vista Yet"
Pros: This defrag utility works really well with Win XP. I noticed a remarkable improvement in excution of most all applications.
Cons: Indicates it's Windows Vista ready. Vista does not catch a compatability issue with O&O Defrag prior to downloading. It will let you download, but after using this program on a Vista loaded system, it would continue to cause the hardrive to "hunt" non-stop. Using the stock Vista deragmenter solved this issue.
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73 out of 139 people found this review helpful
Version: O&O Defrag Professional Edition 8.6
"Best in this class for "Windows XP"!"
Pros: Evan though it's the most expensive it's the best I've used. It has more features and defrag option types than the others. Others meaning "Perfect Disk", "Disk Keeper" and "Ashampoo Magical Defrag". It's fast and has kept my HDD in tip top shape for a long time. You can schedule tasks and it will always get then done on time. Recommended if you can afford it and are willing to shell out $50 bucks.
Cons: Too expensive.
- See all 4 user reviews Write review
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