Adobe Acrobat X Deactivation and Reactivation

I have a lifetime license to Adobe Acrobat X Pro which allows me to install the software on 2 computers. I just had to deactivate this license on my old laptop (and then subsequently uninstalling the software) as I was moving to a new laptop but upon installing this on the new laptop, I received a message and I am allowed only 2 installations and would not allow me to have this activated on the new machine. How do I effectively deactivate this on Adobe server in order for this install to work on my new laptop. I have searched the internet and the only recommended steps were to first deactivate on the old machine then uninstall the software before installing it on the new machine. Which is exactly what I need but did not succeed in the outcome I was hoping for. Please help! Thanks