why install guest additions?
<answer> Enables various extra features include automatic resizing, seamless mode, the bidirectional clipboard, drag and drop, and generally better performance that are already built. <context> That operating system is also called the “guest OS”. Meanwhile, the operating system you actually have installed on your hardware and that you boot into every time you turn the system on is called the “host OS”. This is where the name Guest Additions comes from – they’re additions to the guest OS. Installing the Guest Additions enables various extra features that are already built into VirtualBox. These include automatic resizing, seamless mode, the bidirectional clipboard, drag and drop, and generally better performance.