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-24 Activation Error

Stephen Smith

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Stephen Smith

Hi there,

I am trying to install a copy of Nitro Pro 12 onto my new work PC (Windows 11), however I get a -24 Activation error when I enter the serial number

Can someone please assist?

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  • Official Nitronaut

Hello @Stephen Smith

Thank you for your message - I can help you out.

We have upgraded our activation servers. Please install the latest Nitro Pro 12 update ( so you can reactivate successfully: 

Then activate with your Nitro Pro 12 serial number.

I hope this helps!

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