Overview
What is O&O Defrag Professional?
O&O Defrag Professional is a quality defrag utility that can optimize your hard disks and boasts large speed increases after use.
In depth
A closer look at O&O Defrag Professional
As you no doubt are aware, regular disk defrags can optimize your computer's performance. When you defrag your computer's hard drive, the files that Windows splits up when saving documents across the hard disk are logically put back together again so that files can be quickly recognized.With O&O Defrag Professional, several hard drives can be defragmented simultaneously.
Requirements
System requirements
Windows (All Versions)
Verdict
Should you download O&O Defrag Professional?
O&O Defrag Professional runs on
Windows 10/11
and is available under the
Commercial
license
— the installer is 39 KB.
We’ve catalogued it under
System.
✓
Verified clean. Every O&O Defrag Professional build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
Sponsored
At a glance
O&O Defrag Professional specifications
- Last updated
- Apr 27, 2026
- Requirements
- Windows (All Versions)
- License
- Commercial
- Operating system
- Windows 10/11
- File size
- 39 KB
- Price
- Free
- Page views
- 457
Help fellow users decide. Share your experience with O&O Defrag Professional.