computer. During this process, the BIOS takes control of your computer and decides where to look for software on the computer and in which order.Your computer's BIOS settings determine whether your computer start the booting-up process. If you have multiple operating systems installed on your computer, the BIOS configuration determines which operating system will be loaded first at boot-up. Only after all system to boot-up or make a system command run automatically at boot-up. One way to change or check your BIOS setting is to restart your computer, and press a key to enter the setup function before it starts