Accessing with the BIOS ASUS Laptop key Accessing your laptop BIOS may differs from system to system. The '''asus laptop bios key''' can be accessed through a simple series of steps. Step 1: Restarting the laptop or booting it up by shutdown. Step 2: When computer starts booting up, press with F2 key on your keyboard. Before the machine begins its usual boot cycle, you only have a few seconds to press the switch. This operation will boot up the computer in BIOS mode, a gray and blue screen with various settings. Step 3: Releasing F2 whenyou see BIOS screen.