Affects Version/s: Minecraft 1.8.3
Fix Version/s: None
Environment:OS: Windows 8.1 Pro
The Maximize button is disabled (greyed out) after returning from full-screen mode. This affects regardless of whether Minecraft was started originally in windowed or fullscreen.
1. Press F11 anywhere in Minecraft to enter full-screen mode.
2. Press F11 again in Minecraft to exit full-screen mode.
3. Attempt to maximise the game window.