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Activation error 24

Ian Hart

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Ian Hart

I have been having problems with my laptop and have had to wipe everything and start again several times. I now have the problem of Nitro Pro 12 not installing with error code 24. I have tried logging into the site with my serial number and deactivating the previous active installations but the same problem persists. Could anyone help me please?

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  • Official Nitronaut
Reymund Oyong

Greetings @Ian Hart

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

Please ensure that you have Nitro PDF Pro installed on the computer so you can successfully activate using your existing license. The version and complete build can be located when you navigate to the Help tab > About Nitro Pro. 

If your installation is not on, please install that by downloading the installer from the link below:
https://www.gonitro.com/product-details/downloads - click the 'Download Nitro Pro 12' link. 

After the installation, verify the version and build in the About Nitro Pro window. Once confirmed, click the Activate button then enter your existing serial number. 

Kind regards,

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