windows 10 changes brightness of anything fullscreen:

[Michael Hillyer]

Hello, I have a 1920x1080 monitor. Every time I play a video game that requires to use the full screen, windows 10 makes the brightness dim up a bit making the game have a grayer look. Is there any fix to this? I'll post pictures later to show what I mean.

 

[JobCreator]

I would check your video driver settings. Be sure you're allowing the application to override any settings. It sounds like maybe the games/programs are taking advice from Windows on how to display the video as opposed to the settings within the program. Just my thoughts.