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Nitro Pro 12 wont deactivate/reactivate

Don Brooks

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Don Brooks

I try deactivating on old computer and it gives -24 activation error. This is on a Windows 10 PC using Nitro v12.


Nitro Pro


I tried installing Nitro 12.13 on a new Windows 10 computer and it would not activate there.


The activation checking website says it is valid, has 2 seats with 0 seats used. When I click the "Deactivate" button on the website, it says I have to select a device to deactivate, which there are none to choose.

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  • Official Nitronaut

Hello @Don Brooks

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

We have recently 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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