Extensible Firmware Interface (EFI) Boot Manager

Boot from a File—Automatically adds EFI applications as boot options or allows you to boot from a specific file. When you choose this option, the system searches for an EFI directory. If the EFI directory is found, then it looks in each of the subdirectories below EFI. In each of those subdirectories, it looks for the first file that is an executable EFI Application. Each of the EFI Applications that meet this criterion can be automatically added as a boot option. In addition, legacy boot options for A: and C: are also added if those devices are present. You can also launch a specific application without adding it as a boot option. In this case the EFI Boot Manager searches the root directories and the \EFI\TOOLS directories of all of the EFI System Partitions present in the system for the specified EFI Application.

Add a Boot Option—Adds a boot option to the EFI Boot Manager. You specify the option by providing the name of the EFI application. Along with the name you can also provide either ASCII or UNICODE arguments the file might use. Given the EFI application name and any options, the EFI Boot Manager searches for the executable file in the same directories as described in “Boot from a File” option. When the file is found, it is executed.

Delete Boot Options—Deletes a specific boot option or all boot options

Change Boot Order—Controls the relative order in which the EFI Boot Manager attempts boot options. For help on the control key sequences you need for this option, refer to the help menu.

Manage BootNext Setting—Selects a boot option to use one time (the next boot operation)

Set Automatic Boot Timeout—Defines the value in seconds that pass before the system automatically boots without user intervention. Setting this value to zero disables the timeout feature.

Exit—Returns control to the EFI Boot Manager main menu. This displays the active boot devices, including a possible integrated shell (if the implementation is so constructed).