Thank you for downloading

O&O Defrag Professional

Download for Windows 32-bit

Download for Windows 64-bit

Buy a full version for $29.95

Developed by O&O Software GmbH

Your download will begin in 3 seconds. Click here if it doesn't start automatically.

Related downloads

MiniTool Partition Wizard

Optimize your hard drive space and protect your files.

Okoker Disk Cleaner

Developed by Okoker Software

Developed by J.C. Kessels

Glary Utilities

Developed by Glarysoft Ltd.

Transform your desktop into a digital clock.

Developed by SeriousBit

Top 10 Backup & Restore Software Top 10 Network Tools Top 10 Remote Computing Tools Top 10 System Optimization Tools

Latest downloads

XviD Video Codec

Compress your videos without losing their quality.

Download and transcode multimedia files to multiple formats.

Movavi Video Converter

Convert, edit your audio and video files and move to various devices.

SRS Audio Sandbox

Developed by SRS Labs, Inc.