The main function of the BIOS (Basic Input Output System) is to boot up an operating system on a PC. It does this by first identifying and testing all hardware components (including the hard disk and floppy drives), and ... More »

CMOS batteries power code that runs before the operating system is loaded in a computer. Common tasks completed before your operating system loads are activating the keyboard, loading the system drives and setting the sy... More »

HP and other computer manufacturers use function (fn) keys on compact keyboards to combine two keyboard functions into one in order to save on space. They are typically labeled F1 through F12. More »

You may enter BIOS by quickly pressing a key when the computer is first turned on. This must be done within a specific time frame. The required key varies depending on the computer so you must either refer to the manual ... More »

To update a motherboard's BIOS, identify the BIOS version, then check the manufacturer's website for applicable updates. Read the documentation included with the update, then update the BIOS by downloading and executing ... More »

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Passwords that can be set in BIOS include passwords to boot, to access the hard drive and to change BIOS settings. Enabling hard drive encryption provides the highest level of protection from data theft. More »

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A computer's BIOS software can be updated by downloading and then installing updates from the manufacturer's website. It's very important to follow the recommendations of the manufacturer, as failure to do so may result ... More »

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