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Can't activate Nitro Pro 12 on new computer

David Westman

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David Westman

I have de-activated Nitro from my previous computer, but my new computer will not accept the information I have provided (e.g., serial number) in order to achieve activation. My annual subscription was renewed successfully less that a month ago so payment is not the issue. I have been VERY frustrated regarding my inability to talk with a "live voice" in order to get this situation resolved, and the website has not provided sufficient guidance. I plead with whoever receives this to contact me at david@consultwestman.com to hopefully arrange a time for someone to troubleshoot the problem and get my activation completed. Absent that, the subscription is worthless and I'll be forced to dispute the credit card charge.

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Allain Umailin

Hello @David Westman,

Thank you for reaching out to us through our Community Forums and our sincere apologies for the inconvenience.

We want to make you aware of the change to your product that may affect its activation performance. 

To continue offering our customers the very best PDF tools, we have upgraded our servers and has shut down the one your older version of Nitro Pro runs on so please install Nitro Pro by getting the installer from this page:


If you are getting the 'Nitro Pro Wizard has failed' message using our .exe package, it is because it requires a stable Internet connection to download installation files so please use offline English MSI packages:

x32 http://install.nitropdf.com/professional_12169574/en/retail/nitro_pro12_ba_x86.msi
x64 http://install.nitropdf.com/professional_12169574/en/retail/nitro_pro12_ba_x64.msi 

To know if you have 32-bit or 64-bit, please refer to this article:

After installation, you can activate by opening Nitro Pro, clicking on the Help tab > About Nitro Pro > Activate by entering the same serial number 234600-xxxxxx-989639

Should you have further questions, please do not hesitate to reach out again.

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