If a window won't maximize, press Shift+Ctrl and then right-click its icon on the taskbar and select Restore or Maximize, instead of double-clicking on the icon. Press Win+M keys and then Win+Shift+M keys to minimize and then maximize all windows.

How do I force a window to maximize?

To maximize a window, grab the titlebar and drag it to the top of the screen, or just double-click the titlebar. To maximize a window using the keyboard, hold down the Super key and press ↑ , or press Alt + F10 .

Why is my Maximize button doesn't work?

Many users reported that Minimize, Maximize, and Close buttons are missing from certain applications. This is usually caused by the application settings. ... If this problem appears only in specific applications, be sure to open the affected application and change its user interface settings to default.