how to open cubase 10 pro?

I try to open Cubase on my computer and I don’t understand how to do that.
I try to see all the video and i don’t sucssect here some picture.
i stuck here

Hi and welcome,

As I can see, you have Cubase Elements Trial license. With this license, you can start Cubase Elements just for a limited time. If you already own Cubase Elements license, click to the Enter Activation Code in the eLCC application (the one you sent screenshot from) and enter the Activation Code.

Is your Cubase already downloaded (via Steinberg Download Assistant) and installed? If yes, then just double-click to Cubase icon to start it.