This image shows a typical PC BIOS setup screen. To access this screen you must press a specific key or keys as the computer is beginning the boot process. These keyboard commands vary from one BIOS manufacturer or PC maker to another. Commonly used commands are F1, F2, DEL, ESC or even CTRL+ALT+ESC.
To find out how to enter the BIOS on your computer, first reboot, then hit the PAUSE key when text first appears on the screen. You'll need to have your finger ready to hit that PAUSE key as this happens quickly. Somewhere on the screen you should see something like "F1 to enter Setup". Shortly after pressing the key(s) you should reach a screen similar to the one above.