firstname.lastname@example.org Posted November 22, 2020 Report Share Posted November 22, 2020 Hi, I am trying to deactivate my Nitro Pro 11 so I could install it on my new computer. I get a message - 24 activation error (it says 'activation error even when in fact I am trying to deactivate) I tried going through the manual deactivation but when I enter the serial number I get a pop up asking for a valid serial number (which I double checked 4 times). Any help would be much appreciated. Thank you Link to comment Share on other sites More sharing options...
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