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Installation Wizard not finishing


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The Installation Wizard is stopping abruptly during v. 10 installation. The error message is "22 - wrong license number." The correct license number is being put in and i can't uninstall the Trial version.


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Kelvin B. Villarin

Hi @IDC,

Thanks for posting on our community forums!

Error 22 means the serial number you are trying to activate is for a different version of Nitro Pro. Please uninstall your Nitro Pro 11 using this clean up tool:


Then download the latest version of Nitro Pro 10 from here:

For 32-bit http://install.nitropdf.com/pro10/en/retail/nitro_pro10.exe
For 64-bit http://install.nitropdf.com/pro10/en/retail/nitro_pro10_x64.exe

Once installed, activate your Nitro Pro 10 using your serial number. 

I hope this helps.



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