BY INSTALLING A DRIVER FOR THAT HARDWARE. IF YOU DON'T KNOW WHAT THAT HARDWARE IS, YOU CAN OPEN THE CASE TO LOOK FOR THE NETWORK ADAPTER. THERE ARE PROGRAMS THAT WILL TRY TO TELL YOU THAT INFORMATION, BUT I HAVE FOUND THEM TO NOT WORK VERY WELL.
WHAT wheew... that's better. Why was I yelling?