text: i am useing ca security centre anti virus i have no fire wall with it is windows fire wall enough protection?   windows firewall isn't that bad.  i was always sceptical of its use until i did a check with the shields up port scanner site.  https://www.grc.com/x/ne.dll?bh0bkyd2  however, like the other guys here i'd recommend zonealarm etc as there is probably more protection from malware dialling out. get a couple of decent anti-spyware programs running on there too such as spyware doctor, adaware, windows defender etc