To download the free version of McAfee antivirus for Windows XP, go to the company's main website. The free version of the antivirus software is called McAfee Security Scan Plus. You must have a service pack to update and use the software.
The McAfee Security Scan Plus antivirus program actively checks your computer for known infections. The program also comes with Web security and firewall protection and requires clients to have the Microsoft Internet Explorer 7 version or higher. You can also use a Google Chrome 19 browser or later.
To ensure the program can run on the system effectively, make sure that you are using at least 256 megabytes of RAM. In the event, your computer contracts a computer virus, McAfee designed the Security Scan Plus program to recommend appropriate actions needed to eliminate the threat. Security Scan Plus checks the system for vulnerable weaknesses and advises you on cautious measures to take to prevent an attack.
With the active scanning, you can adjust how frequently you want the computer to run the scan on your XP devices. You can also set up to have automatic updates to ensure the software is always up-to-date with the latest version available.