Kristi Maritn Posted July 31, 2019 Report Share Posted July 31, 2019 I have changed computers and cannot activate Nitro Pro on my new pc. I have deactivated on my old pc, but when I enter the Serial Number i get the message that Error #23 License already in use on another computer. I have waited more than 48 hours to try and reactivate my product. Link to comment Share on other sites More sharing options...
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