If you are unsure if your machine is using 32 or 64-bit, please refer to this link: Ĥ. Download your Nitro Pro 9 using these offline link/s:

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.ģ. Please clear all your downloads folder or delete all downloaded Nitro installers.

Uninstall Nitro Pro from your computer by going to Control Panel > Programs > Programs and Features then reboot the machine.Ģ. We then activate it using your serial number. To further assist you, looks like we need to uninstall the current version of Nitro Pro on your computer and install Nitro Pro 9. Kindly note that our Activation Portal as of the moment can only Deactivate, not to Activate. Hello you for reaching out to us through our Community Forums!