Check Your WIFI is ON or OFF. If Off then for SUre there is no Driver Install or somebuddy Uninstalled it so right click on "MY COMPUTER" then choose Device Manager and try to Scan Ur Drivers If any Msg comes on Task Bar Follow it.

Or Else If U have Driver CD of Same Laptop then drictly Install the Driver and it will Work In Sha Allah If Still No Work after Driver Installation then its the Time to bring to REDINGTON.

If You Want Location then PM so i will send you the Location Also ..

Allah aap k Laptop ki Kharabi Door Karay