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Best antivirus software
Pros: excellent malware detection and removal, fast scan times, low impact on overall system performance
Cons: increases computer boot time, had trouble removing scareware in one test
8085920
736211600387
Kaspersky
Microsoft Windows XP, Windows Vista, Windows 7
512 MB (Windows XP); 1 GB (32-bit Windows 7 and Vista); 2 GB (64-bit Windows 7 and Vista)
480 MB
800 MHz for Windows XP, 1 GHz for Windows Vista/Windows 7
1 user/1 PC
Antivirus, anti-phishing, anti-spyware, real-time protection, Virtual Keyboard, Hybrid cloud/local protection
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Antivirus software for older/slower computers
Pros: excels at preventing viruses, low impact/footprint on PCs, can be used with other antivirus programs, cloud protection delivers excellent up-to-date protection
Cons: loses effectiveness when offline, small number of users experience slowed system performance, large number of false positives in one test
38314
667208383146
Webroot
Windows XP with Service Pack 2 or later, Windows Vista, Windows 7
128 MB
10 MB
Intel Pentium/Celeron or greater, AMD K6/Athlon/Duron or greater
1 user/3 PCs
Antivirus, anti-rootkit, anti-spyware
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Security suite with antivirus software
Pros: comprehensive Internet protection, very good antivirus protection, very good anti-spam and anti-phishing protection, excellent firewall, good parental controls
Cons: high number of false positives, detects fewer viruses than Kaspersky products.
not avail.
8087669
037648324199
Norton (Symantec)
Microsoft Windows XP with Service Pack 2 or later, Windows Vista with Service Pack 1 or later, Windows 7
256 MB
300 MB
300 MHz for Windows XP, 1 GHz for Windows Vista/Windows 7
1 user/3 PCs
Antivirus, anti-spyware, anti-phishing, Norton Safe Web, anti-spam, identity protection, Norton Reputation Service, SONAR 4 behavioral protection, Download Insight 2.0, Norton Management, bandwidth monitoring, email/IM monitoring
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Free antivirus software
Pros: extremely effective at detecting malware, free!, fast scan times, basic anti-spam, anti-phishing and social media protection
Cons: contains ads for paid software, anti-spam and anti-phishing isn't as effective as premium options, slows PC boot times, cluttered, unattractive interface
not avail.
N/A
N/A
AVG Technologies
Windows XP, Windows Vista, Windows 7
512 MB
950 MB
1.5 GHz Pentium or better
1 user/1 PC
Antivirus, SurfShield (basic anti-phishing/Web exploit protection), LinkScanner, memory monitoring, PC Analyzer, anti-rootkit, identity protection, email monitoring
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Best antivirus for Mac
Pros: very good detection performance, quick installation, no ads, scans for Mac and Windows malware
Cons: no phone or email support
not avail.
N/A
N/A
Sophos
Mac with OS X 10.4 (Tiger), 10.5 (Leopard), 10.6 (Snow Leopard) or 10.7 (Lion)
256 MB
150 MB
Intel or PowerPC processor
1 user/1 PC
N/A