A firewall controls network traffic, allowing or blocking it according to rules you specify (rather like a doorman at a nightclub, with rules on who to allow entry to). This can either be a special program running on your computer ("software firewall") or a separate box connected between your computer and the Internet ("hardware or firmware firewall").
How good is Windows' firewall?
Microsoft provided a very simple firewall with Windows 2000 which was then significantly improved with Windows XP Service Pack 2. This version can provide good protection from incoming attacks but cannot be relied upon to control outgoing traffic. Older versions of Windows (95, 98, ME, NT) have no firewall.
How can I test my firewall?
To test your firewall's ability to protect against incoming attacks and scans, visit one or more of the following sites. Note that if you are using a router, the test will target the router, not any software firewall your PC is running.
How do I active my firewall?
First, You Go to > Start Menu > Control Panel > Windows Firewall > then you can Change Settings/Enable or disable.
Sara: Can you help me and tell me how to set a static IP address?
Me: yeah sure, first you have to type network and sharing into the Search box in the Start Menu and select Network and Sharing Center when it comes up, Then when the Network and Sharing Center opens, click on Change adapter settings and press Right-click on your local adapter and select Properties.
Second, In the Local Area Connection Properties window highlight Internet Protocol Version 4 (TCP/IPv4) then click the Properties button.
Now select the radio button Use the following IP address and enter in the correct IP, Subnet mask, and Default gateway that corresponds with your network setup. Then enter your Preferred and Alternate DNS server addresses. Here we’re on a home network and using a simple Class C network configuration and Google DNS and Check Validate settings upon exit so