I am trying to move my QB Desktop Accountant 2020 from my laptop to my Desktop.

I made a backup of the files on my laptop to my PC, uninstalled the 2020 QBD from my laptop and installed it on the pc.  When I click "Register - Begin Activation", I get a popup window "You will need to update your software to access your Intuit account here". 

When I try to find what I am doing wrong, I get the message "Browser not supported - download the latest version".

So I tried reinstalling the 2020 QBD on the laptop.  There also I get the same message.  Can anyone please help me?