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O&O Defrag Professional Edition logo

O&O Defrag Professional Edition

By O&O Software Free to try

Key Details of O&O Defrag Professional Edition

  • Optimize your SSDs and hard disks, securely repacking fragmented files together for more efficiency
  • Last updated on 09/16/19
  • There has been 1 update within the past 6 months
  • The current version has 0 flags on VirusTotal badge_icon

Developer's Description

Regular defragmentation speeds up systems, extends the life expectancy of hard disks and provides increased data security. The new version O&O Defrag 24 can simply be installed and then the user can let it do its work. It will carry out whatever is needed on a user's machine on its own. O&O Defrag will configure and run all settings automatically, according to the requirements of each system. Maximum performance practically out of the can.

Alternatively, O&O Defrag users can of course configure their own settings manually as much as they would like. The O&O Defrag interface has also been redesigned and customized for the latest requirements.

Many new things have been added to the O&O Defrag engine that make using it, especially under Windows 10, even better. That's why version 24 now supports the Windows 10-integrated feature for compressing system files so that more space can be kept free.

Thanks to the SOLID/COMPLETE method, data fragments scattered on SSDs will be combined and saved in fewer memory cells. This results in read and write processes requiring fewer accesses to these memory cells in the future. After defragmentation, the SSD works faster and its lifespan is extended because fewer read and write accesses are


And as always, everything happens automatically in the background. Even a change from hard disk to SSD will be recognized and the optimization strategy adjusted accordingly.

O&O Defrag 24 Professional Edition is compatible with Windows 8.x and Windows 10. It has been optimized especially for low processor and memory capacity in older systems. A Server Edition of the new version 24 will be available shortly for Windows Server versions.

Full Specifications

What's new in version 24.0

Version 24.0:
  • Install & That's All: Install the program and O&O Defrag 24 does the rest, fully automatic, in the background and with no impact on your system.
  • Windows Compact OS Support: O&O Defrag 24 supports the Windows Compact OS compression feature, helping free up space in Windows 10.
  • Quicker Installation: We have made the program installation process even quicker, saving you even more time.


Release September 17, 2020
Date Added September 17, 2020
Version 24.0

Operating Systems

Operating Systems Windows, Windows 8, Windows 10
Additional Requirements None


Total Downloads 311,143
Downloads Last Week 3
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