Step 3: Use Up-to-Date Antivirus Software

Antivirus software helps protect your computer against viruses. Many computers come with antivirus software installed. You can also purchase antivirus software and install it yourself. Just having an antivirus program installed is not enough, however. You also need to keep your antivirus software up to date.

In this step, we will tell you how to get, install and update antivirus software.

Do I Have Antivirus Software Installed on My Computer?

Click Start, and then click Programs

Look for the word antivirus. You might also see the name of a popular antivirus manufacturer or package. These include: McAfee, Norton, Trend Micro and Symantec

If you don't have antivirus software installed, check out the following antivirus software companies to download their products: • Computer Associates (12-month free trial subscription) • F-secure (30-day free trial subscription) • Panda Software (90-day free trial subscription) • Symantec/Norton (90-day free trial subscription) • Trend Micro (90-day free trial subscription)

Important: Having two different antivirus programs installed on one computer can cause conflicts (problems) on your computer. Always uninstall existing antivirus software before installing another package.

Is Your Antivirus Software Up to Date?

Installing antivirus software will only protect you against known security issues. To help ensure your computer is safe, you need to keep your antivirus software up to date. Most antivirus companies offer subscription services to ensure you get the latest updates.

To check if you have up-to-date software: Open your antivirus program from the Start menu or the taskbar notification area and look for update status.

If you're still not sure if your antivirus software is up to date, contact your antivirus software provider.