You can open Device Manager by double-clicking on the System icon in Control Panel, choosing the Hardware tab, and clicking Device Manager.
Try to connect to a wireless network if it shows in network adapters in device manager.
XP:
1. Right-click the wireless network icon in the lower-right corner of your screen, and then click View Available Wireless Networks. If you run into any problems, consult the documentation that came with your network adapter. Don't be afraid to call their tech support.
2. The Wireless Network Connection window should appear and you should see your wireless network listed with the network name you chose. If you don't see your network, click Refresh network list in the upper-left corner. Click your network, and then click Connect in the lower-right corner.
Choose wireless connection
3. Windows XP prompts you to enter a key. Type the encryption key that you wrote down earlier in both the Network key and Confirm network key boxes, and then click Connect.
4. Windows XP will show its progress as it connects to your network. After you're connected, you can now close the Wireless Network Connection window. You're done.
Note: If the Wireless Network Connection window continues to show Acquiring Network Address, you may have mistyped the encryption key.
Vista:
1. Click Start and then click Connect to.
2. Click the wireless network to which you want to connect, and then click Connect.