Install iTunes on your PC
The most important thing is to have iTunes installed on your PC or laptop. If you don’t have it, you better do it first otherwise it will not be possible to get the desired result.
Make sure the iTunes version is updated
Next thing is to make sure that the iTunes version is updated to 8.2 or higher otherwise it will not give you the option to connect the internet with the PC.
Plug-in the USB cable
Disable your current connection and plug the USB from the iPhone to the PC. You will now see a new Local Area Connection has been installed in the networks.
Connect and start surfing
Finally, you just need to connect to the new LAN and start surfing the internet.