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-23: Error - License number already used


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I am trying to move Nitro Pro 11 from one laptop to another.  I properly deactivated the license from the old computer first (Help tab > About Nitro Pro > Activate > Deactivate) and the online license tool said I had used 1 of 2 installs.  I was unable to activate Nitro Pro 11.08.470 on the new computer even after using the activation portal to deactivate BOTH of Nitro Pro installations.  

I understand that Nitro Pro does not support version older than 11, but installation requires intervention from support.  So, HELP!


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Allain Umailin

Hello @ThinkCreateGrow,

Thank you for reaching out to us through our Community Forums!

Since I am unable to pull-up your account, could you please provide the serial number of your Nitro Pro 11?

To send it via private message, hover your mouse on top of my name 'AllainU' and select 'Message'.

Thanks and I am looking forward to hearing back from you. 

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