Best Antivirus Software 2024: Top 10 Ranked

Finding the right antivirus software means balancing protection quality, system performance, features, and price. Our rankings are based on independent lab test results from AV-Test, AV-Comparatives, and SE Labs, combined with hands-on testing and real-world user feedback. Here are the top 10 antivirus products for 2024.

How We Ranked These Products

Our scoring considers several factors: independent lab detection rates (40% weight), system performance impact (20% weight), feature set and value (20% weight), user experience and interface (10% weight), and pricing including renewal costs (10% weight). Products were tested across a six-month period on identical hardware configurations.

1. Bitdefender Total Security

Bitdefender earns the top spot with the best balance of detection capability, system performance, and price. Its 3% system impact during scans is the lowest among full security suites. The ransomware shield is excellent, and the multi-platform support covers Windows, macOS, Android, and iOS. The only notable weakness is the 200MB/day VPN limit on the included tier.

• Detection: 99.8% (AV-Comparatives)
• System impact: 3%
• Best feature: Ransomware behavioral shield

2. Norton 360 Deluxe

Norton earns the highest individual score in our rankings thanks to its comprehensive feature set. LifeLock identity theft protection, unlimited VPN, 50GB cloud backup, and strong phishing detection make it the most complete security suite available. It ranks second overall because Bitdefender offers better value and lower system impact.

• Detection: 99.6% (AV-Comparatives)
• System impact: 9%
• Best feature: LifeLock identity protection included

3. Kaspersky Internet Security

Kaspersky's detection engine is technically one of the best, with zero false positives in recent testing and strong Safe Money banking protection. It ranks third because of geopolitical concerns that restrict its use in some markets. For users in regions where Kaspersky is not restricted, it is an excellent choice that matches or exceeds Bitdefender's protection.

• Detection: 99.7% (AV-Comparatives)
• System impact: 5%
• Best feature: Safe Money secure banking browser

4. McAfee Total Protection

McAfee stands out for its unlimited device coverage, making it the best value for large families. The identity monitoring feature (available on higher tiers) and included VPN add value, though neither matches Norton's equivalents. The heavier system impact is the main drawback, but for multi-device households, the pricing is unbeatable.

• Detection: 99.2% (AV-Comparatives)
• System impact: 12%
• Best feature: Unlimited device licensing

5. ESET NOD32 Antivirus

ESET is the performance champion. With a 2% system impact and 120MB installation footprint, it is the lightest antivirus on this list. Detection scores are excellent, though slightly below the top three. The single-device licensing limits its value for multi-device households, but for a single high-performance workstation, ESET is ideal.

• Detection: 99.4% (AV-Comparatives)
• System impact: 2%
• Best feature: Lowest system impact in the industry

6. Sophos Home Premium

Sophos brings enterprise-grade security management to home users. The cloud dashboard lets you monitor and configure protection across up to 10 devices from any browser. Category-based web filtering and remote scanning make it the best choice for small business owners and family IT managers. Detection scores are solid but not elite.

• Detection: 98.9% (AV-Comparatives)
• System impact: 7%
• Best feature: Cloud-based remote management

7. Malwarebytes Premium

Malwarebytes is not a replacement for a full antivirus suite, but as a supplemental scanner, it is the best in the business. Its PUP and adware detection is unmatched. The real-time engine runs alongside your primary antivirus without conflict. If you already have Windows Defender or another free antivirus, adding Malwarebytes significantly improves your overall protection.

• Best at: Adware, PUP, and browser hijacker removal
• Best feature: Real-time supplemental protection

8. Avast Free Antivirus

Avast offers the most features of any free antivirus, including a basic ransomware shield, network inspector, gaming mode, and a 5GB/month VPN. The detection engine matches paid products since it is the same engine used in Avast's premium tiers. The main drawback is the frequent upsell popups and a cluttered interface.

• Detection: 99.0% (AV-Comparatives)
• System impact: 6%
• Best feature: Most comprehensive free tier available

9. AVG AntiVirus Free

AVG uses the same detection engine as Avast but offers a cleaner, more streamlined interface. The free tier is more limited than Avast's, lacking the ransomware shield and network inspector. For users who want simple, no-frills protection, AVG Free is a solid choice. For those who want more features at no cost, Avast Free is the better option.

• Detection: 99.0% (same engine as Avast)
• System impact: 5%
• Best feature: Clean, simple interface

10. Microsoft Defender (Windows Defender)

Microsoft Defender has improved significantly and now earns solid scores in independent testing. It is free, built into Windows, and has very low system impact. For casual users who practice safe browsing habits, Defender alone is adequate. The lack of a VPN, password manager, and identity protection keeps it at the bottom of this ranked list.

• Detection: 99.0% (AV-Comparatives)
• System impact: 2%
• Best feature: Free and already installed

Summary Comparison Table