By default, the USB controller of the MVM (guest machine) is not enabled. To enable it, in the VM VirtualBox Manager right click on the selected MVM end open the <code>Settings</code> item. Them, select the <code>USB</code> item and configure it as shown in the following image.
[[File:MVM-add-USB-controller.png|thumb|center|600px]]
===How to add the "Guest additions"?===
Please refer to [[How_to_install_the_VirtualBox_Guest_Additions|this page]].