BIOS is an acronym that stands for Basic Input Output System.
Also know as "System Setup", the BIOS is software that is contained on a small memory chip on the PC's Motherboard, typically referred to as the CMOS (Complementary Metal Oxide Semiconductor).
To use a command, open a Command Prompt window — press Windows Key R, type cmd into the Run dialog, and press Enter.
Pick the one for your specific motherboard (though i suspect they're all the same download) and you should be good. That page has links to the BIOS file as well as a DOS and Windows update tools.The BIOS also contains instructions that the PC uses to perform basic instructions, such as whether to Boot from Network or Hard drive, which drive to Boot from first.BIOS is also used to identify and configure hardware components in a computer such as the hard drive, floppy drive, optical drive, CPU, memory, Plug and Play devices etc.On Windows 7, you can search the Start menu for System Information to find it.On Windows 8, it’s more hidden — but you can still launch the System Information panel on Windows 8.This is called the ESCD (Extended System Configuration Data) and this is usually stored in additional non-volatile memory also referred to as NVRAM (Non-Volatile Random Access Memory) Over the years as technology has changed people still refer to the BIOS as both CMOS and NVRAM, however they are subtly different.