Ah, yes. Somehow I missed the license box completely. (My bad.) Once I got that straightened out, I was able to run it. Only problem is, it completely fouled up (and that's the nicest term I can use) my Windows 10. The Groove Music player is no longer recognized, and nothing happens when I click on the Start Menu, either.
Can't win for losing.
How do I fix that? Or is my Windows 10 irreversibly damaged?
I'd appreciate an answer as soon as possible. Thanks.