How can I play the full version of Minecraft, despite the demo?

So the following situation:

I wanted to download Minecraft and entered http://www.Minecraft.net, then click Buy Minecraft, Minecraft for Windows 10 and then I was taken to the Microsoft Store. Then I pressed on buy, entered all the data that was necessary and then I installed Minecraft on my desktop.

I had the trial version of Minecraft before that, which was my undoing, because after Minecraft was downloaded, I could only play the demo version. In the game I'm still shown that my test period has expired and then I'm suggested to download the Starter or Master Collection, although I had already bought it (as described above).

What should I do now to be able to play my downloaded game for which I spent 29.99 euro and not the dreary and annoying test version.

I would be very happy to answer helpful questions!

A couple of questions: Have you deleted and reinstalled the game? Are you signed in with the correct account? When did you buy the game?

Did you play the demo version of the Java or the Bedrock Edition?

Bedrock

No I haven't yet.

and what do you mean by registered?