Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

It always happens to me. O&O Software gave me a license for O&O Defrag 11 Pro, but then the license is invalid.

What do I do?

share|improve this question
up vote 4 down vote accepted

Contact O&O support? I'd guess you're already registered.

Of course, if they repeatedly give you an invalid license key then I'd probably ask for a refund and try and find a different product.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.