Don't know much about laptops but I do know that the wireless has to be switched on.
Some it is just a switch others you have to press Fn and F1 or f2 to switch the wireless on.
No doubt you have already done that but thought that I would mention it.
Or maybe try Control Panel.Administation tools.Services.And scroll down to WLAN and make sure it is set to Automatic.
Thats about all I know about laptops but if you let us know the make and model number others may be able to give you the help that you need.