There are several advanced customization settings for locking down VirtualBox Manager. Locking down means removing some features that the user should not see.

VBoxManage setextradata global GUI/Customizations property[,property ...]

property is one of the following properties:

noSelector

Do not allow users to start VirtualBox Manager. Trying to do so will show a window containing a proper error message.

noMenuBar

VM windows will not contain a menu bar.

noStatusBar

VM windows will not contain a status bar.

To disable any of these VirtualBox Manager customizations use the following command:

$ VBoxManage setextradata global GUI/Customizations