* Online and Offline defragmentation of all volumes supported by Windows including RAID systems
* Five different defragmentation methods for optimal speed increase.
* A lot less free space needed for defragmentation (only about 5% or less, depending on the size of the volume)
* Unique O&O ActivityGuard to monitor the system load and adjust the resource usage of O&O Defrag
* Unique cluster viewer for detailed information on the state of the volumes.
* Many volumes can be viewed at the same time in the cluster view
* Task pane to easily run tasks the way XP does
* O&O TrueRemoteControl – Control a computer as if you were sitting right in front of it without any limitations or performance loss
* Power management for Notebooks
* O&O ClusterInspector to check hard drive zones.
* Automatic defragmentation with integrated heuristic evaluation for optimal planning
* O&O Defrag management through the tasktray
* DefragWizard for automatic defragmentation in just one click (OneButtonDefrag™)
* Status reports in HTML format to keep track of your performance changes
* Windows Explorer Integration – Disk drive defragmentation in Windows Explorer
* Simplified operation of the boot-time defragmentation
* Support of removable drives (USB Sticks, Memory Cards, etc.)
* Improved functionality of the Tasktray icon
* Execution of Windows commands (Batches) before and after defragmentation
* Screen saver mode automates defragmentation whenever the computer is idle
* Compatible with the new Windows Vista operating system from Microsoft