How to Change the Windows Firewall Notification Settings in Windows 7
This will show you how to change the Windows Firewall notification settings for each type of network location (ex: Private or Public) that you use in Windows 7.
Block all incoming connections, including those in the list of allowed programs
This setting blocks all unsolicited attempts to connect to your computer. Use this setting when you need maximum protection for your computer, such as when you connect to a public network in a hotel or airport, or when a computer worm is spreading over the Internet. With this setting, you are not notified when Windows Firewall blocks programs, and programs in the list of allowed programs are ignored. When you block all incoming connections, you can still view most webpages, send and receive e‑mail, and send and receive instant messages.
Notify me when Windows Firewall blocks a new program
If the Block all incoming connections, including those in the list of allowed programs setting above is not checked, then this setting will notify you from the taskbar notification area whenever Windows Firewall blocks a new program from accessing the internet or network.
You must turn Windows Firewall on for the network (Private or Public) location that you want to change the notification settings for.