pacman 0 Report post Posted February 21, 2020 Hi - I've just changed computers and gone through the deactivation/reactivation process, and am now told that the serial number does not exist. I'm rather going around in circles - any clues?? Thanks. Share this post Link to post Share on other sites
Leslie V. 0 Report post Posted February 21, 2020 Hello @pacman Thanks for reaching out to us! Looks like you installed Nitro Pro 13 instead of version 11. Please uninstall and get the correct Nitro Pro 11 installer from this page: https://kb.gonitro.com/knowledgebase#/search/installer/000004464 Please let me know how that goes. Share this post Link to post Share on other sites
pacman 0 Report post Posted February 22, 2020 Thanks Leslie - perfect 🙂 ... Share this post Link to post Share on other sites