BWalliams 1 Report post Posted December 6, 2016 Hey, so I'm trying to reinstall Nitro Pro. I have a key from a couple of years back but it's not working anymore and it's giving me this error -22. Any idea what that's about? Do these keys expire?? Quote Share this post Link to post Share on other sites
Mario K. 0 Report post Posted December 7, 2016 Hi There, Thanks for posting a question in our Community Forum! Error -22 gets displayed when you're trying to activate Nitro Pro with a serial number that belongs to a different version of Nitro Pro. Please click on the link below to learn more about this activation error: http://kb.gonitro.com/knowledgebase#/search/error/000001648 Quote Share this post Link to post Share on other sites