When you press the power button on your Dell laptop, it loads the BIOS (Basic Input / Output System) before the operating system is started. The BIOS ensures that each hardware component is operational and then loads the operating system. If you want to change certain system settings, such as the boot sequence or processor speed, you can do so through the BIOS. The BIOS menu is hidden and can only be accessed by pressing a specific key as the system is restarting. Tips Writer Bio
