Second Monitor Acting Up While Gaming?

[slayerming2]

So I've started playing R6S recently, I play it on my gaming laptop, but I use a second screen as the screen where I play the game. Sometimes I notice when I'm playing the game is acting up like I"m pressing other buttons when I'm not really. I notice the first screen on my laptop is also acting up, which shouldn't be happening since I'm playing on full screen mode. The worst is when it brings me randomly to the desktop screen.

Any idea what I can do about this?

[ShadySocks]

Does this only happen when using a second screen?

[slayerming2]

3 minutes ago, ShadySocks said:

Does this only happen when using a second screen?

 

Yeah, and only when I'm gaming? I don't know hot to describe it, but it feels  like I'm not playing in full screen mode, so my inputs on my laptop is being affected on my first screen as well. 

[Mira Yurizaki]

I've seen this happen with some full screen games if I Alt+Tab out of it. I can only chalk it up to Windows doesn't realize the full screen app should have focus.