This should help...
1. Go to "Control Panel".
2. Next go to "Network and Internet" and then "Network and Sharing".
3. From the options on the left-hand side, select "Change adapter settings".
4. Now right-click on the icon for "Wireless Connection" and click "Enable".
5. Now to back to "Network and Sharing Center" and then click on "Manage Wireless Networks".
6. Now choose the WiFi network listed that you want to connect to.