Rimas631 0 Report post Posted February 17, 2020 The license is valid but I cannot activate the product after the system upgrade. The same message all the time: "The serial number entered does not exist." Share this post Link to post Share on other sites
AllainU 0 Report post Posted February 17, 2020 Hello @Rimas631, Before continuing, please be aware that Nitro Pro 11 or older are already discontinued as documented in our Sunset Policy: https://www.gonitro.com/support/sunset-policy . With that, support for the discontinued versions are no longer available. If you are interested in upgrading your license to Nitro Pro 13 with VIP Access (formerly Software Assurance), kindly access our Upgrade Portal and enter your Nitro Pro 11 serial number: https://www.gonitro.com/pro/upgrade You should then receive an email confirmation with a new serial number to activate Nitro Pro 13. To know more about some enhancements and fixes with Nitro Pro 13, please visit our Release Notes page https://www.gonitro.com/nps/product-details/release-notes If you prefer staying with Nitro Pro 11, uninstall Nitro Pro 13, reboot your machine and reinstall using the installers from this page: https://kb.gonitro.com/knowledgebase#/search/online/000004464 If you are not sure which to pick, this will help: https://kb.gonitro.com/knowledgebase#/search/64/000003790 After installation, you can activate by opening Nitro Pro, clicking on the Help tab > About Nitro Pro > Activate by entering your serial number. Thank you for choosing Nitro and I hope this helps! Share this post Link to post Share on other sites
