It is very important, when you use wireless network, to disable the "File and Printer Sharing". Other wise all the users in your wireless network may get access to your shared data.

Here I have shared the steps you need to follow to disable "File and Printer Sharing" in your Windows machine.

• Click the "Start" button, then go to "Control Panel," then click "Network Connections."
• Right-click the "Local Area Connections" icon and select "Properties".
• In "General" tab un-check the "File and Printer Sharing for Microsoft Network" option.
• Press "OK" .

The world is slowly switching to wire free networks from wired ones. So some service providers are ready to provide free Wi-Fi/Wireless network services in many places.

In this scenario, PCWorld and JiWire can help you spot free/paid Wi-Fi/Wireless network service providers in your area. You can search their directory to locate wireless services near to you.

You can also browse by a specific address, a city, state, country, airport or zip code to find nearby access points.

I feel, for a better search result you have to provide your exact ZIP/PIN code.

Remember that you may have to create an account of your own for accessing some networks. Also take care of the basic rules and safety tips of using Wireless networks.

Checkout the Wi-Fi /Wireless Hotspots finder.