Check the game’s video or display settings
Select Fullscreen or Exclusive Fullscreen mode
Apply the changes
Press Alt + Enter on Windows if supported
Press F11 if the game uses a browser or launcher window
Use the game’s resolution settings to match your monitor
Restart the game if the fullscreen setting does not apply immediately
Update your graphics drivers if fullscreen mode is unavailable
Check your operating system display scaling settings
Disable borderless windowed mode if you want true fullscreen