Dw411 Posted September 18, 2019 Report Share Posted September 18, 2019 We have Nitro 11 on one of our computers. Its reverted to trial mode for some reason, maybe a Windows Update. I put in the key and it says License number already used. I deactivated it on your site. It says there are 0 activations for that serial number and yet, I still get error -23. Link to comment Share on other sites More sharing options...
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