The laptop can’t connect to wireless networks and does not display any other networks.
The wireless network card has not been enabled.
Hold the FN key down (which is located in the bottom left of the keyboard) and press F8.
Hold the FN key down and press F11 or F10.
In general, the concept is the same but each machine will use different function keys for the wireless signal. The best way is to look for a icon that represents a wireless signal with a antenna.