If you're using a Windows laptop, there are several reasons why you may want to disable the built-in keyboard. For example, ...

If you’re trying to get some work done in a dark room, the backlight on a Mac’s keyboard can be a godsend. With each key lit up softly you can see which one is which and there’s no need to be a ...

The Function Keys (F1 to F12) on the Windows keyboard have specifically assigned roles. For example, F1 opens the help page of any application you’re currently on. This is useful in many situations.