How to set network device priority in Windows 7
1. Click the Start Button
2. Right Click “Network” and then left Click Properties
3. From the “Network And Sharing Center” window click “Change Adapter Settings”
4. On the “Network Connections” window, press the ALT key on your keyboard to being up the menu bar
5. Click the “Advanced” menu and then “Advanced Settings”
6. In the “Advanced Settings” window you will see the “Adapters and Bindings” tab and under “Connections” you will see the order they are in, you can use the arrows to the side to move the connection priority up and down.