

The first thing you should do is install Guest Additions on the VM. Here’s a step-by-step explanation of these processes. If you want this display to fill up the entire screen, you need to execute additional tasks. The Window goes to full-screen mode but the display remains the same and occupies the central position. While the above option is called Full Screen Mode, it doesn’t actually change the size of the Virtual Machine display.

How to Make VirtualBox Actually Full Screen If you want to change this key or the shortcut, you need to go to File > Preferences > Input > Virtual Machine.

