Charlene King Posted December 3, 2022 Report Share Posted December 3, 2022 (edited) I successfully deactivated my license on my old computer (clicked yes when it asked if I was sure...) and cannot activate it on my new Windows 11 machine. My license number is 234***-******-******. It says "Unknown error." It's Nitro Pro 184.108.40.206, but I'm just a casual home user (not business) and need the program to sign and edit PDFs. Please help? Thanks in advance. Edited December 5, 2022 by Reymund G. Link to comment Share on other sites More sharing options...
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