To enter BIOS you first need to restart your computer and read the BIOS entering setup message to follow the instructions, because what you need to press varies from one computer to another.

For a reason or another, some computers are configured to show a Logo or a picture on start up instead of the usual setup message. When that logo shows up, press Esc or Tab to remove it.

If your computer does not pause enough time to read your BIOS entering setup message., you may pause the screen by pressing the Pause/Break key on your keyboard. Press any key afterwords to unpause your computer.