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Reactivation of NitroPro 11 is getting error msg -24 Activation Error

Michael Ross

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Michael Ross

I had to do a factory restart on my laptop (Windows 10).  I am trying to reload NitroPDF 11.  I enter the serial number and I get the above title error.  I followed the instructions to go to "Submit a support request" > NitroPDF Pro > Enter Name / Email/ Serial No > Activation.  Then followed the instructions to enter my serial number (again) to find the license.  License found and ran deactivation.  Then tried to activate and get the same error.

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Leslie V

Hello @Michael Ross

Thanks for reaching out to us! I am happy to assist you.

Please note that we no longer support Nitro Pro 11 and its activation servers have been shut down.

We recommend to upgrade to our latest version, V14, which comes with significant stability and security improvements, as well as many feature enhancements, in particular in conversion and OCR functions. To upgrade to Nitro Pro 14, please visit our upgrade page: 
Please let us know if you need any further assistance.

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