- Quick specs
- Price: Free to try (30-day trial); $19.95 to buy (Buy it now)
- Operating system: Windows Vista, Windows XP, Windows 2000
- Date added: Date unavailable
- Total Downloads: 246,836
- Downloads last week: 159
- See full specifications
A newer version of O&O Defrag Professional Edition is available.
(Download doesn't provide access to previous versions of this program.)
- Average user rating: stars out of 143 votes
See all user reviews
Publisher's description
From O&O Software :The new O&O Defrag 10 Professional Edition for Windows-based workstations unlocks the hidden Performance of your computer. This software will optimize your hard disk in Windows Vista, XP, 2000 securely repacking fragmented files together for more efficiency. In addition, O&O Defrag 10 Professional Edition boasts outstanding usability and a myriad of important functions not found in any other defragmentation software platforms on the market today. Version 10 adds self-adjusting background defragmentation, and defragmentation profiles features, and includes revamped user interface.
Special Offer: to thank our loyal customers and to celebrate O&O Software's 10th anniversary, O&O Defrag 10 Professional Edition is now 60% off. Save 30 USD! Exclusively on download.com. This offer is valid until June, 20th 2007
What's new in this version:
Version 10 adds self-adjusting background defragmentation, and defragmentation profiles features, and includes revamped user interface.More popular System Utilities downloads
- 215,505 downloads 1. Glary Utilities
- 91,042 downloads 2. Smart Defrag
- 44,461 downloads 3. Auslogics Disk Defrag
- 17,309 downloads 4. Glary Utilities Pro
- 16,920 downloads 5. Partition Wizard Home Edition
- See all System Utilities downloads
User reviews of O&O Defrag Professional Edition 10.0.1634
Write your own review Be the first one to review O&O Defrag Professional Edition 10.0.1634 and share your experience with the CNET community!
Previous versions: See all user reviews
Submit your review
Previous Versions:

