Latitude 7220EX Rugged Extreme Tablet Service Manual

Press and hold the Volume down key to access the BIOS. Press and hold the Volume up key to access the one time boot menu with a list of the valid boot devices for the system. Diagnostics and BIOS Setup options are also in this menu. The devices that are listed on the boot menu depend on the bootable devices in the system. This menu is useful when you are attempting to boot to a particular device or to bring up the diagnostics for the system. Using the boot menu does not make any changes to the boot order stored in the BIOS.