Game keeps minimizing

Since yesterday whenever I start the game every ten seconds or so it automatically minimizes itself. I don’t know what to do or what causes it.

Download Window Focus Logger and see what background app is taking over when you’re trying to play.

I am probably stupid, but I tried doing that, and I am probably doing it wrong, since according to that program the only thing I have open is Overwatch itself.

Maybe this reddit thread can help: https://www.reddit.com/r/Windows10/comments/3vbzth/turn_off_focus_stealing/

So I read that and even though I am still not sure I understand it all, I thank you for the link.
Back to the Foxus Logger thing…
Apparently Focus goes from Overwatch and explorer… But I dont understand how or why… I take it (and here my stupidity about computers shines through) that explorer is the desktop…? But why would that take focus and how do I stop it? And even if it is not, how do I stop it?

Are you running a single monitor?

I have a second monitor that I don’t use for gaming.
But has never given me problems before.