I restarted my Lenovo G555 Laptop what drivers do i need to connect to Wi-Fi?

I restarted my Laptop about 2 months back and can't connect to Wi-Fi forcing me to use an Ethernet cable. I haven't installed any drivers on it because i don't have the driver CD's and i don't know where to get them on the internet can someone point me to the drivers i need after this restart.

What is the complete model number and operating system of the laptop?
Did you use the built in system recovery or the recovery media created for the laptop to set it back to factory?
You will find all the drivers for your laptop at Lenovo support by model number and operating system. You also can order the operating system recovery media from Lenovo for your laptop and all the drivers come on the recovery media disc or DVD for the laptop.

Lenovo, Creating Recovery Media in Windows 7 http://support.lenovo.com/...MIGR-74040

Lenovo, How do I recover my system using ThinkVantage Rescue and Recovery http://support.lenovo.com/...D=HT002492

Get the latest wireless drivers from Lenovo site. You can search for the drivers based on the model number. I've put a link to the drivers and software section of their site below.

Hope this helps.