Anna Kephart Posted September 14, 2020 Report Share Posted September 14, 2020 (edited) Hello, I finally upgraded my laptop after many years. I tried to reinstall Nitro PDF using my serial number (234600-xxxxxx-xxxxxx) but it isn't working, and I used the deactivation process and it still isn't working. What should I do? My serial number shows up in the activation portal, but when I enter it in the program itself, I get the error message that "this serial number does not exist." Thank you! Edited September 15, 2020 by AllainU Link to comment Share on other sites More sharing options...
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