1.Firstly download clockworkmod tether app for android below and install it :-*
2.Now download the software for windows here and install it :
3.After you have done theese steps Connect your android phone to your pc with a usb cable.
4.Then start clockworkmod tether app on android by clicking on the tether logo .
5.Once finished start clockworkmod for pc on your computer and wait until the tether logo become green
6.DONE!You tether your phone to your pc.Enjoy internet....