Dell Alienware 17 R2 Service Manual page 143

2 Use the arrow keys to highlight the Boot menu option and press Enter to
access the menu.
NOTE: Note your current boot sequence in case you want to
restore it.
3 Navigate to Set Boot Priority to configure the boot priority.
4 Use the arrow keys to highlight the boot priority and press Enter to
display the different devices.
5 Select the device and press Enter to set the boot priority.
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