Without Guest Additions, you have to press the Host Key every time you want to liberate your mouse pointer from the VM. Guest Additions allows you to do a bunch of cool stuff.įor example, with Guest Additions, you no longer have to press funky key combinations to release the keyboard and mouse. In the same way, your physical (real) PC is the Host and the virtual computers sitting around your dinner table are the Guests. You are the dinner host and your friends are the guests because they are inside your home.
If this get’s confusing just imagine you were organizing a dinner party at home for your friends. And the VMs are the Guest machines, in this case, Windows 8.1 is your Guest OS.
The Windows 7 computer is called the Host machine because all your VMs are running inside it. Let’s say you’re running Windows 7 on the computer that has the VirtualBox installation and you want to install a Windows 8.1 VM in VirtualBox with Guest Additions.
Guest Additions is designed to marry common tasks between the Guest and Host operating systems so that your life as a VirtualBox user is easier.
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