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Can't activate Nitro Pro 10 -23: Error

Steven Hope

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I have recently had my PC replaced and can't activate the new install of Nitro Pro 10. All I keep getting is this: -23: Error - Licence number already used.

I had "deactivated" my licence via https://licenses.gonitro.com/prd/portal and it says the number of activations is 0.

I have followed these instructions but still the same problem: 


My Serial Number is: ***

Please can you fix this?

Edited by Leslie V.
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Hi Leslie,

I was unsure whether my post to this thread was the correct way to seek a response, and therefore started a new thread here:


Nitro 10 Pro activation on replacement PC

By AD1, December 3 in Activation/ Installation


I received a helpful response from AllainU, and my Nitro 10 Pro is now activated.

Thank you for your response as well.



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