In simple words, the boot menu required a user to input before booting up the device but the boot sequence is a pre-defined sequence in the BIOS setting that runs automatically when the user does not provide any input so that it can boot up your system with the priority device in the sequence. Most people are confused about the boot sequence when they trying to understand BIOS and the boot menu. Check the below image of the boot menu for more reference. It provides a privilege to the user's that they can load and install the new operating system on their machines. It consists of various device options to boot, including CD/DVD, USB drive, hard drives, and a LAN (Local Area Network). See BIOS image below for more reference,Ī menu that is accessible during the computer starts up process is known as a boot menu. If the computer fails to pass the power-on self-test (POST), you might hear some beep sounds which indicates the malfunctioning in the computer and your system will not start. So BIOS run a test which is POST (Power-On Self-Test) that checks the computer meets requirements to boot up properly or not. The primary purpose of the BIOS is to load the basic computer hardware during the booting process i.e, it is responsible for booting up your system. Boot menu option keys for all computers and laptopsīIOS (Basic Input/Output System) is a chip that is embedded into your system's motherboard.We will also cover what is BIOS, what is boot menu, boot sequence vs boot menu and how to get to boot menu. Most people are aware that every computer company provide different boot menu keys for their computers and laptops. In this blog, I have tried to cover boot menu option keys for all computers and laptops that are very useful especially, when operating system installation is required.

Lenovo boot menu key