Reference Guide

--usbport14

Valid Argument enable, disable

Description Enables or disables USB port 14.

--usbport15

Valid Argument enable, disable

Description Enables or disables USB port 15.

--usbport20

Valid Argument enable, disable

Description

Enables or disables USB port 20.

--usbport21

Valid Argument enable, disable

Description

Enables or disables USB port 21.

--usbport22

Valid Argument

enable, disable

Description

Enables or disables USB port 22.

--usbport23

Valid Argument

enable, disable

Description

Enables or disables USB port 23.

--usbports

Valid Argument

enable, disable, enablebackonly

Description

Enables or disables user accessible USB ports.

If set to enablebackonly , it enables BIOS emulation of all supported USB devices except for

bootable devices (floppy, USB flash, and so on). This is a security feature that will prevent users

from inserting a USB boot device and booting an operating system from it. Non-bootable devices

(keyboard, mouse, and hub) are still emulated.

--usbportsexternal

Valid Argument

enable, disable

Description Enables or disables the external USB ports.