How to Switch on Wireless on an HP Laptop
Locate the external switch for the wireless function. Most HP laptop models are fitted with a switch on the side or front of the computer than can be used to turn on the wireless functions. If not on the side or front, the switch may be above the keyboard or on one of the function keys at the top of the keyboard. 
- The switch is indicated by an icon that looks like a wireless tower emitting signals.
Slide or press the switch into the on position. The indicator light on the key will turn from amber to blue when wireless is enabled. 
Method Two of Three:
Enabling Wireless in Windows 8 Edit
Press the Windows key. This takes you to the start screen
Type “wireless”. When you start typing, a search bar will open in the upper-right corner of the screen.
Click on Change Wi-Fi Settings . It will appear in the search results
Click on Turn wireless devices on or off .
Slide the button next to “WiFi” to the “On” position. Your HP laptop can now connect to wireless networks. 
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