Avira Free Antivirus has a heavy system load while providing only so-so malware protection.
PSafe DFNDR is feature-rich and easy to use, but its malware protection is inconsistent and the free version has too many ads.
Avira may not charge for its Mac protection, but other free options provide better malware detection, system impact and design.
ESET Mobile Security offers very good malware protection, but too many of its essential features are premium-only.
BullGuard Antivirus is fairly easy to use and offers lots of customization options, but its malware protection is only so-so.
ESET NOD32 Antivirus has a clean, easy-to-use interface and a light system load. Too bad its malware protection is average at best.
F-Secure Anti-Virus offers excellent malware protection at a bargain price, but it has a heavy system load and a high false-positive rate.
Panda Antivirus Pro 2016 catches nearly all malware and lets you create your own interface, but it threw up several false positives.
It's slow and missed some dangerous software, but Avast Pro Antivirus offers a password manager and protection against website redirects.
Kaspersky Anti-Virus combines fast scans with safeguards against ransomware, but its protection isn't perfect and it can be hard to navigate.
It may not be the most thorough at finding and removing malware, but McAfee's AntiVirus Plus is a bargain for large families.
Avira Antivirus Pro is quick to set up, offers nearly flawless malware protection and has some useful features Avira Free Antivirus lacks.
Bitdefender Antivirus Plus has tough malware scans, little system impact, ransomware protection, a password manager and a file shredder.
Bitdefender Internet Security 2016 has nearly perfect malware protection, a strong feature set and a remarkably light system impact.
ESET Smart Security 9 includes some unique features, like a stolen laptop tracker, but its malware protection isn't good enough.
Kaspersky Internet Security is a solid antivirus package, but is weaker at finding sophisticated malware on Windows 7 than some competitors.
Trend Micro Internet Security 10 has a perfect record of stopping malware, but it has a somewhat heavy system impact during scans.
McAfee Internet Security is a solid, if not stellar, antivirus suite that protects an unlimited number of devices across multiple platforms.
Webroot SecureAnywhere Internet Security Plus has a decent stack of extra features, but is difficult to use and doesn't stop enough malware.
AVG Ultimate is a bargain for those with many devices to protect, but its malware protection isn't as good as it could be.
Trend Micro Premium Security is a great deal for premium antivirus software -- if you can get it at the sale price.
Bitdefender Total Security offers excellent malware protection and a very useful quick scan, but it doesn't have every feature we want.
AVG AntiVirus Pro has excellent Android anti-theft and privacy tools, but be ready to download a few more apps to unlock its full potential.
Webroot SecureAnywhere Antivirus will protect your PC with minimal impact, but there are better options.
AVG AntiVirus 2015 can encrypt your data and doesn't bog down your PC, but it doesn't offer the best malware protection.
Trend Micro is a solid antivirus program, but its limited extra features keep it from being our top pick for PC antivirus.
ClamXav may be a well-known name in Mac security software, but it just can't compete with other free options.
Intego Mac Internet Security X8 is a lightweight paid program with excellent extra features, but it lacks a Web-link scanner.