In the Preferences window, go to the Extensions section. After a fresh installation of VirtualBox, there are no extensions packages installed. Click the Add a new package button (the icon with a green plus) to add the extension pack.
In the Preferences window, go to the Extensions section. After a fresh installation of VirtualBox, there are no extensions packages installed. Click the Add a new package button (the icon with a green plus) to add the extension pack.