Why Windows Firewall Is Necessary

A firewall makes assist to keep your PC more safe and sound. It is very beneficial and everybody should be acquainted with Windows Firewall. It keep a tight rein on information which comes from a new computer to your computer, if anybody try to connect your computer without any call or request may be people or programs including viruses and worms provides a strong security to them and provides extra control over the data to your computer. 
 

 

Firewall act as a fence which verify the information comes from a network or internet and it may ignores or it allows to go by through your computer. It totally depends upon your firewall settings, to know more about follow the instruction given below:

 

Here you will know about Windows XP Service Pack 2 firewall. Windows Firewall is always turned on by default in Microsoft Windows XP Service Pack 2 . But, a few computer manufacture and network administration power it off. Some good news for users that you can select one of your best firewall which gives good security to your computer by ignoring the use of Windows Firewall, if you think it's not enough for safety to your computer. Estimate the quality of other firewalls and then take decision which firewall will be the best for you and for your PC. If you want to install and run added firewall, simply make it turn off Windows Firewall.

 

How it's work ?

Suppose somebody is there over internet or in a network and tries to connect to your computer, these effort can be said an "unsolicited request". So, Windows Firewall stop the connection as soon as when it gets an unsolicited request from your computer. If you run a program as usual like LAN game which requires multiple network player or using direct messaging program, the firewall will ask that you want to block or unblock the connection. If you choose block the connection, immediately it will not allow any other users to send any information to your computer. But if you choose unblock the connection, Windows Firewall makes ommision so that if program needed any information  in future, it will not trouble you nor ask you anything.

 

For instance, if you are using direct communication with an important person and want to send some important file to you may be documents or photo. At that time Windows Firewall will ask that do you want to unblock the connection and would like to permit the photo get through to your computer. Similarly, over internet if you are eager to play a multiplayer system game with online friends, you can add the game as an exemption so that firewall will permit the game information to arrive at your computer. Even though you can turn off due to some specific reason like network and internet connections, applying this risk is more and the security of your computer may be compromised. 

 

What it does and does not do's ?

It does:	It does not
It block computer viruses and worms from entering your computer.	Identify computer viruses and worms if they are already on your computer. For that reason, you must install good and effective anitivirus software and regular updated it. So that you can avoid viruses, worms and other security risk from damaging your computer or using your computer to spread viruses to others.