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J'ai un problème avec 3 licences :

une licence ne s'active plus  âpres mise a jour système

et deux licences un message s'affiche lors de l'installation  :

Toujours un message "Erreur 20" est affiché en activant Nitro avec ces 2 numéros de licences.




I have a problem with 3 licenses:

a license is no longer activated after a system update

and two licenses a message is displayed during installation:

Always an "Error 20" message is displayed when activating Nitro with these 2 license numbers.

Edited by AllainU
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Allain Umailin

Hello @k.spacsystems,

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

Please be informed that '-20: Error - Invalid License Number' means the serial number you are trying to activate is for a different version of Nitro Pro. 

Looks like we need to uninstall the current version of Nitro Pro on your computer and install Nitro PDF Pro 13. We then activate it using your serial number. Kindly follow these steps:
1. Uninstall Nitro Pro from your computer by going to Control Panel > Programs > Programs and Features then reboot the machine.

2. Please clear all your downloads folder or delete all downloaded Nitro installers. This step is important because we noticed that if you are saving all the installers and you download them in the same folder (like the downloads folder), the EXE can pick up any MSI installer in that folder and you may pick-up one of the older builds instead of the newly downloaded package.

3. Download and install Nitro PDF Pro using our offline French installers below:

x32 http://install.nitropdf.com/professional_13450917/fr/retail/nitro_pro13_ba_x86.msi 
x64 http://install.nitropdf.com/professional_13450917/fr/retail/nitro_pro13_ba_x64.msi
To know if you have 32-bit or 64-bit, please refer to this article:

4. After installation, you can activate by opening Nitro Pro, clicking on the Help tab > About Nitro Pro > Activation and entering your serial number 

Thank you for choosing Nitro and I hope this helps.

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