O&O Defrag Professional 11.5.4101

3.4 out of 5 stars 3.4 (158 votes)

(April 21, 2009)

Windows 2000/Vista/XP / Shareware; $49.95 / 27,219 downloads

O&O Defrag puts fragmented files together and maximizes your network's speed. Defragmentation of large networks becomes easier than ever before: centralized client installation with drag & drop, execution, and scheduling of defragmentation jobs for single computers or free definable groups and much more.

Professional Edition unlocks the hidden Performance of your computer. This software will optimize your hard disk securely repacking fragmented files together for more efficiency. In addition, it boasts outstanding usability and a myriad of important functions not found in any other defragmentation software platforms on the market today.

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Reviews of O&O Defrag Professional

  1. 5 out of 5 stars
    RWW

    Reviewing 11.5.4101 (Apr 21, 2009)

    There are none better!

  2. 5 out of 5 stars
    Landsnes

    Reviewing 11.5.4065 (Apr 18, 2009)

    The best defragmentation application I've used!

    I've used this application for a few years now, while checking out other defrag apps at the same time, but none of them works as good as this one. I've tried PerfectDisk, Iobit Smart Defrag and Auslogics Disk Defrag, but the performance gain is always higher with O&O Defrag Pro. Quality German programming. (To any paranoid fileforum users: no I'm not affiliated at all to the O&O software company, nor am I paid by O&O to give this review.)

    Well done, developers. full score!

  3. 1 out of 5 stars
    ballyhairs

    Reviewing 11.5.4065 (Apr 1, 2009)

    Hmmm... its been a while since I saw BSD on my pc, I cant even uninstall it.

  4. 5 out of 5 stars
    nukefixer

    Reviewing 11.5.4065 (Mar 8, 2009)

    I have used this software for quite sometime, present as well as previous versions and I can report that it works very well for me. I use it at home on my Vista computer thats used for gaming, and my work computer.
    I give it 5 stars becuase it works as advertised, and works well.

  5. 4 out of 5 stars
    Undesired Username

    Reviewing 11.1.3362 (Dec 5, 2008)

    An outstanding defragger, but for the bugs. I kept having problems with the service not talking to the GUI, or even losing its brains completely, doing nothing.

    Poor kids and cheapskates always slam commercial software in favor of half-baked freeware, but it makes no difference.

    O&O Defrag doesn't "open online connections" for nefarious purposes. The defrag service talks to the GUI by way of a TCP port. This is a common practice for software that combines a background service with a front-end GUI. It's also mentioned in the help file.

    O&O Defrag doesn't slow anything down. In fact, if you enable "AutoSense", it stays out of your face and does its thing without driving you nuts. Compare that to freeware crap that not only requires you to run it manually, but slows your system to a crawl while it runs.

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