RCTL+C: show/hide menu
RCTL+F: full screen
RCTL+L: embeded to main window as a picture
after installing enhance package:VBoxGuestAdditions.iso
RCTL+Fn+Home: show the menu in os
RCTL+C: show/hide menu
RCTL+F: full screen
RCTL+L: embeded to main window as a picture
after installing enhance package:VBoxGuestAdditions.iso
RCTL+Fn+Home: show the menu in os