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Activation Failing - v10 to v12


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The key that we have a copy for is version 10, and I have the serial number available.

I have recently upgraded to a new computer, but lost the v10 Nitro Pro in the process - I have redownloaded v12 however the activation serial will not work as it is coming up with the below error message:

"-22: Error - Wrong license number"

Is there a way to download the old version, or amend the license that we have for the newer version?


Many thanks.


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Kelvin B. Villarin

Hi @rose.law,

Thanks for posting on our Community Forums!

The serial number you are trying to activate is for a different version of Nitro Pro. 

Please uninstall your copy of version 12 and download the appropriate Nitro Pro 10 installer here:


Once installed, kindly activate your copy: http://kb.gonitro.com/knowledgebase#/search/activate/000001639

I hope this helps.


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