Shankar R Posted April 26, 2020 Report Share Posted April 26, 2020 Hi There, I had Nitro PRO 11 in my computer. And My Computer OS got crashed. And I have reinstalled OS and installed Nitro PRO 11 again as Trail version and using my Serial Key I have tried to activated but it was giving error saying that "-20: Error - Invalid Licence number". One thing I have noticed that my Installation ID was different from the previous to the current installation. Please help. Thank you. Best Regards, R Shankar Link to comment Share on other sites More sharing options...
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