

How to turn on or off the Windows Vista Firewall.How to turn off the Windows Firewall in XP.Therefore, before installing a 3rd-party firewall or an Internet Security Suite with a firewall, make sure you turn off the the Windows firewall US-CERT recommends using both hardware and software firewall.The Differences and Features of Hardware & Software Firewalls.Kerio, ZoneAlarm, Comodo, etc) in conjunction.

However, you can use a hardware-based firewall (a router) and a software firewall (i.e. Sometimes you may even have a conflict that causes neither firewall to protect your connection. Only one of the firewalls can receive the packets over the network and process them. Further, running multiple software firewalls can cause conflicts that are hard to identify and troubleshoot. Why? Using two firewalls could cause issues with connectivity to the Internet or other unexpected behavior. Using more than one software firewall on a single computer is not advisable.
