And since they’re free, you can try several before settling on your favorite. Some take the fight to the browser, working to ensure you never even browse to a malware-hosting site or get fooled into turning over your credentials to a phishing site.īelieve it or not, some of these freebies even beat all but the best for-pay equivalents. All the free antivirus programs we've selected here offer real-time malware protection. Your antivirus should certainly have the ability to root out existing malware, but its ongoing task is to prevent ransomware, botnets, Trojans, and other types of nasty programs from getting a foothold.

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