The BIOS (Basic Input-Output System) is low-level software that is stored on a chip on the motherboard. The BIOS starts to run when the user starts to wake up all the components of the machine, then launch the Bootloader to load the operating system.
You may not need to use the BIOS if your laptop is pre-installed on Windows and only needs basic needs, but some settings require a new BIOS setting (for example, the drive reads the operating system). To access the BIOS often have to hit certain keys before the Windows logo appears, but it is difficult for each laptop manufacturer has a different key press. Here’s how to access the BIOS on some popular laptops.
BIOS on Manufacturer
|Manufacturer||Keyboard (Depending on the model you can choose)|
|Acer||– F2 (Press repeatedly or Press and hold when Power on)|
|Asus||– F2 (Press hold) + Power, then Hold F2 until the BIOS screen appears|
– Delete (press multiple times or press hold when power on)
|HP||– Press Escape when opening machine + F10 when the boot menu selection screen appears|
– F10 (press when power on)
– F2 (press to activate the boot selection menu)
– F6 (press when power on)
|Dell||– F2 (Press multiple times when powering on, press Fn button repeatedly)|
|Sony||– F2 (Press hold) + Power: for Vaio S / Z|
– Assist (press when power on)
|Lenovo||– F1 (Press hold when you see the Lenovo screen/logo): for Thinkpad and ThinkCentre|
– F2 (press when power on): for the remaining lines
|Samsung||– F2 (Press hold when you see Samsung Logo|
On Windows 10
From the Power dialog in the Start Menu, hold down Shift and select Restart. At this point the computer will restart with the Advanced Startup screen, select Troubleshoot -> Advanced Options -> UEFI Firmware Settings -> Restart to boot into the BIOS.