Michael Carp Posted December 13, 2019 Report Share Posted December 13, 2019 The version on my old workstation is 12.0.0.112. I followed instructions to activate a new version on my new workstation by downloading a trial version. Unbeknownst to me, is is version 13. When I tried to activate the license, I got a message that the license number was invalid (even though I pulled it off of the old workstation). When I realized that I was trying to license a newer version, I tried to remove the program through the Control Panel application on Windows. But, I got an error message that i had to reboot my computer. That didn't work either. So, at this point, I can't activate the program or remove it. Please advise. Link to comment Share on other sites More sharing options...
Official Nitronaut Allain Umailin Posted December 13, 2019 Official Nitronaut Report Share Posted December 13, 2019 Hello @Dworkis, Thank you for reaching out to us through our Community Forums! Since you are unable to uninstall your previous install, please run our Clean-up Utility by referring to this article: https://kb.gonitro.com/knowledgebase#/search/clean/000004209 Then reinstall your Nitro Pro 12 using below direct installers: x32 http://install.nitropdf.com/professional_12163574/en/retail/nitro_pro12_ba_x86.msi x64 http://install.nitropdf.com/professional_12163574/en/retail/nitro_pro12_ba_x64.msi 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! Link to comment Share on other sites More sharing options...
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