Murat Genc Posted January 6, 2022 Report Share Posted January 6, 2022 I had my computer rebuilt. I installed Nitro Pro, but I cannot activate it. It says not a valid serial number when I enter the serial number. I went through deactivation steps, and I think I managed to deactivate Nitro, but I am not sure. Is this because Version 12 serial number does not work with Version 13? What can I do to activate it? Link to comment Share on other sites More sharing options...
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