Cannot surfing the internet wirelessly and no items in Network Connection?

I cannot surfing the Internet wirelessly even though the wireless signal on my laptop is lighted up. There is no items in Network Connection. Help Me!|||there is a virus in ur laptop... so better 1st u format ur laptop then install all the drivers then install antivirus only.... so that the other program works well.. i just knew 1 best site for antivirus downloads and review http://antivirus.reviewcity.net