While you are using the Internet, you
must ensure you are protected from hackers accessing your
computer remotely and viruses which can cause costly damage
if downloaded. Fortunately, Windows XP has an inbuilt
security application, called a firewall, which needs to be
activated to protect you against such threats.
Activate your Windows
XP Firewall
You can automatically activate
your XP firewall by downloading a small file available
here.
When you are prompted to download the
file click Open