Embedded UEFI Shell

Use this option to enable or disable the Embedded UEFI Shell, a pre-boot command-line environment for scripting and running UEFI applications, including UEFI boot loaders. The Embedded UEFI Shell also provides CLI-based commands you can use to obtain system information, and to configure and update the system BIOS. When enabled, and Add Embedded UEFI Shell to Boot Order is enabled, the Embedded UEFI Shell is added to the UEFI Boot Order list.