"No Overwatch license found"

I bought Overwatch GOTY (on CD) a few days ago, installed the game and when I launched it it said “No Overwatch license found”. It gives me a LogIn screen, but I can’t log in, as it won’t let me press the “Login” button.

Hey,
Have you registered the game on your Battle.net account by using the cd-key in the box?


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