Hi i just reinstalled windows 7 ulimate becuse it was slow and when i reinstalled. the laptop i clicked on the internet icon on the taskbar and it had no wireless connections on it just a wired connection and the wireless icon on side of the laptop is orange were has wireless gone and my computer on bottom has a wifi enabled sticker help
In your laptop there is a switch for wireless on and off option. Check this button and slide it to the on position. then click on the network icon at the bottom right side of window and refresh it. if this does not solve the problem then write with the laptop model.
WiFi not found 
check the wi fi switch 
Linear Mode
