So let me get this straight:
You have a computer with Internet access (presumably via cable?)
You have a Belkin (USB??) Wifi adapter for the computer
You want your phone to use the internet by connecting to the computer over WIFI
Am I right?
If so, you can actually do it with Windows 8/8.1. Here's a how-to. It's fiddly but looks sound. What OS are your running on the computer? http://www.7tutorials.com/how-turn-your-windows-81-laptop-wifi-access-point