7.8/10 (Expert Score)
Product is rated as #42 in category Hard Drive/ Partition

O&O Defrag Professional optimizes your hard disks and SSDs, and you can experience speed increases of up to 100%! Regular disk defragmentation optimizes your PC performance. When you defragment, the files that Windows splits up when saving documents across the hard disk or SSD are put back in order again so that files can be quickly recognized and found by the SSD or the read and write heads inside your HDD.


O&O Defrag Professional Discount Codes

Coupon Code
Last updated: April 01, 2024Check all O&O Software promo code for FREE here!
O&Amp;O Defrag Pro - 1 Pc
O&O Defrag Pro - 1 PC
65% off coupon code: regular price $49.95, discounted price $17.48
-65% 100%
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O&Amp;O Defrag Pro - 5 Pcs
O&O Defrag Pro - 5 PCs
65% discount coupon code: regular price $99, discounted price $34.65
-65% 100%
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O&Amp;O Powerpack (Bundle)
O&O PowerPack (Bundle)
67% Off coupon code: regular price $59.95, discounted price $20. This pack contains O&O Defrag Pro, O&O DiskImage Pro, O&O SafeErase Pro and O&O AutoBackup Pro
-67% 100%
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O&Amp;O Software Sitewide Code
O&O Software Sitewide Code
Sale 65% Off O&O Software sitewide coupon code
-65% 100%
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O&O Defrag Professional Free License Key

Giveaway Details
Paid version
  • Can be used lifetime. No time limitation
  • Free upgrade to the new version
  • Free technical support
Giveaway version
  • Lifetime license only for version 26
  • The license granted for 1 computer for home use only
  • You can install/reinstall after the end of this offer
  • No free updates
  • No free tech support

How to get the license key?


Please enter your email address and press “Request free license”:

Oo Defrag Professional Giveaway
O&O Defrag Professional 1

You will receive an email as confirmation of registration – click on the link provided to complete the registration. After confirmation, the activation code and the download link will be sent to the specified email address:

Oo Defrag Professional License Key Free
O&O Defrag Professional 2

After installation, copy the license key for O&O Defrag Professional Edition to activate it to the full version:

Oo Defrag Professional Giveaway License
O&O Defrag Professional 3

O&O Defrag Professional screenshot:

Oo Defrag Professional Free License Key
O&O Defrag Professional 4

O&O Defrag Professional DiskCleaner:

Disk Cleanup Oo Defrag Pro
O&O Defrag Professional 5

O&O Defrag Professional Schedule:

Schedule Oo Defrag Pro
O&O Defrag Professional 6

Extras – O&O Defrag Professional

Extras Oo Defrag Pro
O&O Defrag Professional 7

O&O Defrag Professional Features

Feature Highlights
  • Analyze used space on your hard disk with the help of Charts
  • O&O DiskCleaner searches for and removes temporary and unnecessary files
  • Automatic background defragmentation
  • Optimizing systems with Thin Provisioning
  • Boot Time Defragmentation
  • Detailed status reports
  • Simultaneous defragmentation of multiple drives
  • Zone Filing for optimal file organization
  • Customizable drive zones
  • Dynamic cluster view of defragmentation in progress

Technical Details

Product specification
Language SupportEnglish, Français, German, Italian, Japanese, Portuguese, Russian, Spanish, Swedish, and more…
Money Back Guarantee30-Day
Operating SystemWindows
ShippingFull version license code will be sent to you within minutes
Support ServicesEmail, Forums, Phone

User’s and Editor’s scores

Add your rating
8.5 Total Score

O&O Defrag Pro is a powerful software to optimize your hard disks and extend lifespan. It supports HDDs and SSD.

8.5Expert Score
Customer Support
1User's score
Customer Support
Add your review  |  Read reviews and comments
4.8/5 - (24 votes)
Show all Most Helpful Highest Rating Lowest Rating Add your review
  1. I downloaded the O&O Defrag-Profesional version 25 from your give-away promotion. But I ca not find where to input my e-mail to get the registration key. I scrolled all the the way up and down the page with no success.
    Will you please assist me on getting the registration key or point the proper link?
    my e-mail is tech-99@outlook.com

  2. The best defragger for Windows 7-10-11.
    Automatic defrag works very well. Low system resources used.

  3. 0.5
    Customer Support

    Defrag Professional the last time I used this programme it made my computer run like a pig to which I had to completely to a factory reset. Would not suggest using this.

    Helpful(1) Unhelpful(3)You have already voted this

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