Unable to download Trados 2019 to my laptop although I am supposed to have permission to have this on my laptop as well as myn desktop

I rarely have to use my laptop as a back up if my desktop goes down. I note that my Trados Studio on the laptop is still the 2017 version and it needs to be upgraded to the latest 2019 version (which is the version i use on my desktop). I can find no way of enabling this to happen.

Pleaes advise.