Windows Tips
Turn on the
Windows XP Firewall
Microsoft included a firewall in Windows XP to keep you
safe from hackers while you are on the Internet. To find out if the Windows
Firewall is on, do the following:

Step 2: Double-click the Windows Firewall icon.

Step 3: If the Firewall is off, turn it on by clicking the appropriate option button.

You can turn the firewall off with the option button, but unless you are going to add a third-party firewall for heightened security, it's best to leave it on. The firewall keeps the computer in full stealth mode.
Click Here to View Shortcut keys for your computer. Its good to know this stuff in case your mouse doesn't work.