With the growing number of remote attacks on computers, it is important to make sure that your home systems are secure as well as your office systems. The following contains instructions on a few things you can do to help secure your home computers running Windows XP.
Start by clicking Start and then Control Panel

Then click on Performance and Maintenance

Then click on Administrative Tools

Then double-click on Local Security Policy

This will open the Local Security Settings window. From here, click on the Security Options under Local Policies on the left-hand side.
Then scroll down until you find the options outlined in red on the right-hand side.
Double-click on each item and set them to the following:

Reboot your system and the settings should now be set.