I can adjust the volume of the G751 (using the Fn + F10 or Fn + F11/F12 keys) in many applications, even some full screen ones, like various games. But not all of them, for example the Witcher 3. This is very annoying!

Has anyone figured out a way to adjust volume in games like the Witcher 3 without alt-tabbing or having to use the in-game volume settings? (when running in full screen, maybe borderless windowed mode works, I don't use that unless the performance is the same or better, and in most games it's not)?

Thanks!