How to set full screen (full screen)
Now that you have “VirtualBox Guest Additions” mounted on your CD drive, run VBoxWindowsAdditions inside the drive. The VM VirtualBox Guest Additions installer will start. Click “Next” to install.
Now that you have “VirtualBox Guest Additions” mounted on your CD drive, run VBoxWindowsAdditions inside the drive. The VM VirtualBox Guest Additions installer will start. Click “Next” to install.