Choose an interface
The modern interface is the recommended start; the classic ribbon interface remains available.
Compare the interfaces →Optimize automatically
Let O&O Defrag optimize in the background or on a schedule, with limits on load and power use.
Set up automation →Script optimization
Start analysis and optimization from the command line with OODCMD.
Get started with OODCMD →O&O Defrag is commercial software. You can try it during the trial period; continued use requires a valid license. OODCMD and the advanced optimization of the Windows Recovery Environment are not available in the trial version.