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Activation after move to new computer

Curt Robinson

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Curt Robinson


I've tried to activate a license for Nitro Pro 12 on a new computer. I've deactivated all my licenses and I'm getting a "-23:Error - License number already used" when trying to activate. I've tried deactivating my anti-virus, but didn't help. What are next steps?




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  • Official Nitronaut

Hello Curt,

Thank you for posting on our Community Forums!

We apologize for the inconvenience. Please install the latest Nitro Pro 12 update from this page:https://www.gonitro.com/nps/product-details/downloads

Please install Nitro Pro 12. Note, that it should be version 12, not 13.

Then activate with your Nitro Pro 12 serial number. 

I hope this helps. Let me know if you require anything else.

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