How to install full version on trial version?

Hi team!

So I installed and tested the trial version of Adobe Premiere Elements 15.

I liked it so I bought the full version of Adobe Premiere Elements 15.

I entered the license key in the trial version and got rid of the trial version

banner that appears in your movies.

My question:

When entering the license key I got a notification that I should make sure

all features in the full version was installed on my PC. How do I check that?

And how do I install any missing mssing feature?

Or do I need to uninstall the trial version and install the full version?

Regards

Georg