GeneM 0 Report post Posted December 9, 2019 Hello, I had tried to deactivate a version of Nitro that was on an old PC we no longer use. I deactivated it and tried to reactivate with the serial number we had. It had said that the number was invalid. I went on the support forums and saw that it may have something to do with the version. I had version 12, and version 13 was already out. I downloaded version 13 and cannot get it to activate. Please help! Share this post Link to post Share on other sites
AllainU 0 Report post Posted December 11, 2019 Hello @GeneM, Thank you for reaching out to us through our Community Forums! I have checked my inbox and I can see you were able to fix the issue by installing Nitro Pro 12 instead of Nitro Pro 13. Should you need further help, please do not hesitate to submit another forum post. We will be more than happy to assist you. Cheers! Share this post Link to post Share on other sites