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Frequently Asked Questions about Downloads
You’d like to unlock a test version into a full one?
Once you have a license for O&O Defrag 19 Pro, download the test version. You’ll then be able to enter your license code to convert your test version into a full one.
You have an older version of an O&O Defrag?
You will not be able to use the registration information from a previous version (O&O Defrag 18 and below) to unlock a current one.
You want to use O&O Defrag on a Windows Server?
The O&O Defrag 19 Professional Edition may only be used on desktop or notebook systems. Servers require the O&O Defrag Server Edition