
If everything goes well, you will be prompted to run the installation and restart your virtual machine. To install Windows Guest Additions, mount the Guest Additions ISO file by clicking the Devices dropdown menu and selecting the Insert Guest Additions CD Image menu item. Installation can be easy if you do not run into error messages, which I did.

The most notable feature is the ability to resize the machine’s window and automatically adjust the screen resolution.

There are many reasons to install Windows Guest Additions for Oracle VM VirtualBox: mouse pointer integration, enable shared folders and clipboard, optimal video support, as well as generic host/guest communications.
