Useful if your laptop doesn't have a right Ctrl key
How to Change and Use Host Key in VirtualBox on Windows10 – Tutorial
To use any of the keyboard shortcuts in VirtualBox, you must use the Host key in combination with another key. By default, the Host key is the right Ctrl key on your keyboard.
There may be some keyboards, such as laptop keyboards, that do not have a right Ctrl key. If you are in this situation, or if you would rather use a different key as your Host key, this post describes how to change which key on your keyboard is used as the Host key.
To change the Host key, open VirtualBox. From the File menu, select Preferences.
