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#11
Have you clicked on the network connection icon in the bottom-right System Tray to see if networks are available to connect? If so, then rightclick on the icon and run Troubleshooter which actually fixes things in Win7.
If no networks connections are available, rightclick to Open Network & Sharing to look at Adapter settings. Is Wireless connection enabled? If not, enter Device Manager>Network Adapters and install or update the driver for Wireless adpater.