None of this has much use for the average user. Otherwise, the Guest Additions bring time synchronization with your host machine, the option for automated logins, and can monitor communications between the guest and host. This means that you must hit the Host key (right Ctrl by default) to bring the mouse control back to the host OS. If this is the case, your mouse pointer will become 'trapped' inside the VirtualBox window after you click inside it. Then it is time to switch on the virtual machine before that downloads the Guest Tool from the below. However, some older OSes require exclusive control of your keyboard and mouse. Once you changed the Graphic controller option to VMSVGA. With most modern OSes, VirtualBox allows you to seamlessly move your mouse between your host and guest system. One that may affect you, depending on the guest OS, is seamless mouse integration. There are a few other useful perks to installing them, though these are not as generally useful. The above functions are the main features of VirtualBox's Guest Additions.
Other Benefits of VirtualBox Guest Additions Hit Host + L again to turn this off-if it doesn't seem to work, make sure you select the VirtualBox VM first.ĥ.
You're then free to use its windows with your regular desktop software. Once you've done this, the VM will go full-screen and VirtualBox will remove its background.