The BIOS, or Basic Input/Output System, determines your Dell laptop’s boot sequence. The BIOS settings control your laptop’s hardware settings and boot order. If you wish to change the boot sequence–to make the computer boot from a disc, for example–you’ll need to enter and modify the BIOS at startup. There are a few different ways to enter the BIOS, depending on which Dell laptop you’re using. Writer Bio

How to Switch My Boot Sequence in My Dell Laptop - 3