1 License Activation Portal is no help- Unable to migrate and activate license

[Linda Flegel 0]

I had previously installed and successfully activated Nitro Pro (v12), but I had system restore my computer. Now Nitro Pro is giving me activation problems, and it seems the only way to activate is "manually", which it is not allowing me to do, or it is asking me to configure a proxy, which I am not using. I would like to get this activated. When I submitted a ticket and deactivated so I could enter the license number, I get an error message "The serial number entered does not exist." 

[AllainU 0]

Hello @Linda Flegel,

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

Based on the information you have provided, you were offered to manually activate the program after clicking Activate button and it is not generating the activation certificate.

At the moment, we are still investigating this behavior and to further assist you in troubleshooting this issue, kindly follow these steps: 

1. Clear the content of the directory under C:\users\your_username\Appdata\local\temp. For whatever reason, not all temp files automatically remove themselves and is NOT usually caused by Nitro Pro files. Kindly note Appdata folder is hidden and to unhide it, please refer to this article https://cybertext.wordpress.com/2012/05/29/cant-see-the-appdata-folder/ 

2. Download and run our Clean Up utility to uninstall your Nitro Pro:  http://install.nitropdf.com/professional_13241467/install-cleanup/install-cleanup.zip

NOTE: This clean-up tool will erase any existing signature files within Nitro so please save them to another location before using the clean-up tool in order to keep them. Please see this link for backing up custom stamps/signatures: https://kb.gonitro.com/knowledgebase#/search/stamps/000004307 

3. 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.

4. Download and install Nitro Pro 12.16 using below offline installers:

x32 http://install.nitropdf.com/professional_12163574/en/retail/nitro_pro12_ba_x86.msi
x64 http://install.nitropdf.com/professional_12163574/en/retail/nitro_pro12_ba_x64.msi

If you are not sure which to pick, this will help: https://kb.gonitro.com/knowledgebase#/search/64/000003790 

5. After installation, you can activate by opening Nitro Pro, clicking on the Help tab > About Nitro Pro > Activate by entering your serial number 23460x-xxxxxx-248527
 
Thank you very much in advance and I am looking forward to hearing back from you.