如何隐藏Virtualbox的任务栏？

Run the following command in your terminal (or command prompt):

VBoxManage setextradata global GUI/Customizations noMenuBar,noStatusBar

Start your VM. The Menu bar and the Status bar should be gone now.

To retrieve back your menu bar and status bar, run the command:

VBoxManage setextradata global GUI/Customizations MenuBar,StatusBar While the menu bar is gone, you might want to learn some Virtualbox keyboard shortcuts to quickly access the menu options.

Bring up the menu options – Host + HOME