- Quick specs
- Price: Free to try (30-day trial); $49.95 to buy
- Operating system: Windows Vista, Windows XP, Windows 2000
- Date added: March 05, 2009
- Total Downloads: 249,489
- Downloads last week: 234
- See full specifications
- CNET editors' rating: stars
- Average user rating: stars out of 143 votes
See all user reviews
CNET editors' review
Reviewed by: CNET Staff
If Windows' defrag utility isn't getting the job done, check out O&O Defrag Professional Edition. It has one of the best feature sets in the market and did a good job defragmenting a large disk in our tests. Besides being efficient, O&O Defrag is inconspicuous. It can work in a resource-efficent stealth mode, on a schedule--at night, for instance, or during moments when your computer is idle. It offers several defragmentation methods, such as arranging files by name or by the date of last access. O&O Defrag is probably overkill for average PC users, but it's a solid choice for its target audience of home-office users.Publisher's description
From O&O Software :The new O&O Defrag 11 Professional Edition activates the hidden performance of your computer. O&O Defrag optimizes your hard disk and effectively and securely packs file fragments back together. O&O Defrag 11 includes an array of functions that a really good defragmentation software should offer, ranging from a fully automated defragmentation function to an expert settings option. Differences to previous versions We have expanded the range of functions of the new O&O Defrag 11 to make it even easier to use. For the first time, it is possible to defragment single folders or files over the context menu besides the usual hard disks and partitions. Furthermore, we have developed a background monitoring function, which automatically protects your computer against strong fragmentation without you as a user having to get involved. The new and sophisticated file status view shows you the quantity and the fragmentation level of the most extensively affected files. Also, the already familiar block view has been enhanced with detailed information.
What's new in this version:
Version 11.5.4065 features: protection from strong fragmentation through background monitoring and defragmentation, defragmentation of individual directories and files through the context menu, optimized file status view and enhanced block view, extensive defragmentation of system files (meta files), and improved performance.
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User reviews
- Average user rating: 3.8 stars out of 143 votes
- My rating: 0 stars Write review
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Showing 5 of 6 user reviewsSee all 6 user reviews
This software version | All versions -
1 out of 3 people found this review helpful
Version: O&O Defrag Professional Edition 11.5.4065
Pros: Does its job well.
If and Once tech support is required assistance takes a while, but then informed and prompt responsesCons: Options such as stealth and space a little complex for lay users...or more particularly which IS the best way forward.....
Summary: Happy to use and promote this....I also trust that following the trial period (all too common with download.com these days) that it leaves something as workable as the full package
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0 out of 4 people found this review helpful
Version: O&O Defrag Professional Edition 11.5.4065
"a exelent option to defragment!"
Pros: after i use this program my computer is very faster, is just select the mode complete/access wait for it defragment... and done after is just schedule for defragment all week 14:00 PM and you feel the difference
Cons: who don' t like this program don' t know how use it
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1 out of 1 people found this review helpful
Version: O&O Defrag Professional Edition 11.5.4065
"Todo funcionaba bien hasta que instalé este programa..."
Pros: Intalé el programa en windows xp sp2. Defragmenté todo el disco. El sistema mostró un incremento de velocidad. Hasta aquí todo bien... pero...
Cons: Activé la función defragmentacion automatica y a partir de alli, el programa desfragmentaba el disco en modo stealth antes que se cargue el escritorio de windows. Luego de un par de dias perdí mis datos. ¿Por qué? Apareció un error de disco...
Summary: El chkdsk de windows trató de solucionar el problema ocasionando pérdida de la información. Asi que tengan mucho cuidado con este software. Muchas gracias
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5 out of 7 people found this review helpful
Version: O&O Defrag Professional Edition 11.5.4065
Pros: None - just 'beggar-ware' - bunch of RETARDS who CANNOT program 2 save their life, only did it 2 beg 4 yer' $
Cons: Program does nothing - inferior 2 WinDo$e built-in defrag tool, +
Summary: What a ****** piece of C R A P!!
Absolute C R A P!! INSTALL @ YOUR OWN RISK (& headaches =)
U have been warned!
All I wanted is something 2 smoosh together all the files so there was not the stupid little space... read more >> -
5 out of 5 people found this review helpful
Version: O&O Defrag Professional Edition 11.5.4065
"Defragments Perfectly.... But Stability..?"
Pros: Defragments Perfectly
Cons: De-fragments Perfectly but BIOS issue is flashed on screen while restart.
Summary: I use windows XP. I installed this program and it did the defragment perfectly. I was amased by its speed and was very happy that I got this program. But when I shut down my computer and later tried to restart it. The computer un usually flashed a m... read more >>
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