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Protect your PC against viruses.Free
Secure your PC with antivirus, intrusion prevention, firewall, and vulnerability scanning technology.Free to try
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Protect all that's important on your Mac.Free
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ABOUT ANTIVIRUS APPS
An antivirus app can help protect you against a variety of malicious computer activity that's generally referred to as "malware." A virus is a type of malware that can make copies of itself and transmit those copies to other devices, usually in a stealthy manner. If you are shopping for an antivirus app, there are several features to look for.
What to look for when shopping for antivirus software
Download.com has a ton of antivirus programs you can take for a spin, but the sheer number can be daunting. Let's show you some ground rules to create a shortlist of winners.