I can't leave the beta version...

Hello. I recently downloaded Minecraft Windows 10 from the Microsoft Shop. All is going ok, but, I have an error.

The error is when I downloaded it, it automatically downloaded me the 1.16.0.51 Beta and I don't want the beta. I went to the Xbox Insider Hub and I saw "available" and not "join". I joined, and then, I leave the beta. I unistall it and install again, and... What happened? The beta is downloaded again.

Please, tell me how can I exit the beta succesfully.

 

-Thanks