How to switch on the wifi in laptop

[sunita_50]

i just need your help. i got the problem with my laptop shows turn off when i try by the key pad is not open can you please give me the solution
that will be great

 

[dodger46]

Could be your WLAN driver missing. Start Button, search for 'Device', click 'Device Manager' Click on the little arrow next to 'Network Adapters' Your WLAN adapter should be listed, check it doesn't have a yellow '!' exclamation mark...