This software can be used to replace the standard Windows disk defragmentation utility. You can manually defrag or establish a schedule that runs automatically. You can select a single volume or all volumes. The cluster inspector lets you view the contents of a cluster and display fragmented files. This supports every file system for Windows NT and 2000.

SoftSea.com had fully tested and uploaded the install files, O&O Defrag V4 Professional Edition does not contain any adware or spyware, the latest version is 4.0.508, you can download this software (9.42 MB) from special server of SoftSea.com.

The license of this software is Free Trial Software, the price is $49.00, you can free download and get a free trial before you buy. If you want to get a full or nolimited version of O&O Defrag V4 Professional Edition, you can buy this diagnostic software software.