Which Is The Lenovo Sm Bus Controller Driver

Lenovo Sm Bus Controller Driver Windows 7 64 Bit

Please help
Hey!!
I am fixing a laptop for a friend, had to reboot her, but in doing so am missing some drivers i cant find anywhere >.< ( bloody drivers )
I dont have broadband as such, am using my iphone on my PC to download drivers , copying to a USB stick and installing on the laptop, so i cant use the website or any driver detecting software from the Internet, hence my frustration
Lenovo t420 4180 - 63g
Windows 7 64bit
Missing drivers
Base system device
Network controller
Sm bus controller
Unknown device ( think this is the wireless card )
Have installed lots of drivers from the Lenovo support/drivers page but none seemed to work,
Help in the right direction would be much appreciated

Sm Bus Controller Driver Win 7

Apr 20, 2016 - Intel SD host controller Driver and a SM bus controller is missing.