Can't establish wireless connection

FIRST CHECK TO SEE IF THERE IS A WIRLESS APDAPTER INSTALLED IN THE COMPUTER. IF SO, THEN FOLLOW THESE STEPS. RESTART YOUR COMPUTER, ON REBOOT, CLICK F10 WHEN YOUR CHANGE BOOT OPTIONS SCREEN COMES UP. YOU MUST PRESS F10 QUICKLY OR IT WILL LOAD WINDOWS AND YOU WILL HAVE TO RESTART AGAIN. ONCE YOU GET INTO THE BIOS SETUP UTILITY GO TO SYSTEM CONFIGURATION, SCROLL DOWN TO BOOT OPTIONS CLICK ENTER. GO DOWN TO INTERNAL NETWORK ADAPTER BOOT AND ENABLE IT. GO TO EXIT AND SAVE..