Trouble activating Nitro Pro 12.0.0.112

[KeithR]

I just purchased Nitro Pro 12.0.0.112. I was using the trial version with 3 days left. I have a receipt for my purchase and a serial number. On the Help tab in Nitro Pro I clicked on Activate. In the window that pops up I clicked Activate. In the Activation window I entered my serial number then clicked on Activate. Window popped up that says Activation Complete. Now when I open Nitro Pro 12.0.0.112 there is a notice in the work space EXPIRED TRIAL which also appears in upper right corner next to Buy Now orange tab.

I tried deactivating/reactivating with the same result. So now I have a $149 trial version of Nitro Pro 12.0.0.112. Please respond with instructions on how to activate my purchased version of Nitro Pro 12.0.0.112.

[Allain Umailin]

Hello @KeithR,

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

Our system shows you were able to deactivate and re-activate today.

Since you are still using 12.0.0.112, would it be possible to uninstall it, reboot your machine and install 12.10? If yes, please use these offline installers:

x32 http://install.nitropdf.com/professional_12101487/en/burn/nitro_pro12_ba_x86.msi
x64 http://install.nitropdf.com/professional_12101487/en/burn/nitro_pro12_ba_x64.msi

If you are not sure which to pick, this will help: http://kb.gonitro.com/knowledgebase#/search/64/000001874

After installation, you can activate by opening Nitro Pro, clicking on the Help tab > About Nitro Pro > Activation and entering your serial number.
 
Looking forward to hearing back from you soon.