Opening the BIOS selection menu
1. Switch on the device or restart the device.
2. Immediately after switching on the device, press the "Esc" button and keep it pressed.
The following message appears briefly after the device is switched on:
Press ESC for boot options
The BIOS selection setup appears:
The number of buttons in the BIOS selection setup depends on your device version.
The following buttons are available:
Operating Manual, 05/2016, A5E33664825-AB
Exit selection menu, continue start sequence
Specify the boot media from which to start, for example:
Hard disk drive
Start device manager for UEFI boot media