Asad Shah Posted October 19, 2022 Report Share Posted October 19, 2022 Hi - I have just upgraded to Windows 11 and now my Nitro PDF Pro has deactivated. I tried entering the activation key but it did not work, giving me a '-24: Activation error'. I then went on the support website, filled out the form and tried to activate it there. It suggested to 'deactivate' the license first and then activate it. When I click on the 'deactivate' option, it says 'please select device to deactivate' but the number of activations are 0 and I can't therefore select a device to deactivate. Can someone please help? Link to comment Share on other sites More sharing options...
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