BitdefenderUses AI and file sandboxing to detect zero-day threats with 99.9% accuracy.95.0NEW£14.99/year
KasperskyProcesses over 400,000 new malware samples daily through its global research network.90.3NEW£29.99/year
McAfeeIncludes a built-in VPN with unlimited bandwidth for all subscription tiers.85.7NEW£24.99/year
Trend MicroUses cloud-based threat detection to identify risks without burdening local systems.83.3NEW£29.99/year
AvastFree tier protects over 400 million users globally with community threat intelligence.81.0NEWFree (Premium from £39.99/year)
AVGOffers complementary system cleaning and optimisation utilities alongside antivirus.78.7NEWFree (Premium from £39.99/year)
Windows DefenderReceives real-time definition updates from Microsoft Defender cloud intelligence.76.3NEWFree
G DataUnique dual-engine approach combines two independent antivirus technologies for verification.74.0NEW£39.99/year
Bitdefender combines machine learning and behavioural analysis to detect threats before they execute, offering industry-leading malware protection without slowing your system.
Norton (formerly Norton LifeLock) provides comprehensive malware protection across multiple devices with identity theft monitoring, parental controls, and round-the-clock customer support.
Kaspersky leverages decades of threat intelligence and advanced heuristics to detect sophisticated malware, including ransomware and zero-day exploits with high precision.
ESET provides fast, efficient malware protection using minimal system resources, making it ideal for older or lower-spec devices whilst maintaining strong detection rates.
McAfee offers comprehensive security including real-time scanning, firewall protection, and a built-in VPN, with a focus on ease of use for mainstream consumers.
Trend Micro leverages cloud-based scanning to reduce local processing whilst delivering rapid protection against new threats via its global intelligence network.
Avast provides accessible antivirus protection with browser extensions and behaviour shields, supported by input from millions of users worldwide sharing threat data.
AVG combines core malware protection with supplementary tools like file shredder and performance optimisation, offering good value at an accessible price point.
Microsoft's native Windows Defender provides baseline malware and ransomware protection at no cost, integrated seamlessly into Windows 10 and Windows 11 with regular updates.
G Data employs two independent scanning engines working in parallel to increase detection accuracy and catch threats missed by single-engine solutions.
Viruses are self-replicating code requiring user interaction to spread; malware is a broad category encompassing viruses, trojans, worms and spyware; ransomware encrypts your files and demands payment for decryption. Modern antivirus software protects against all three threat types.
Free solutions like Windows Defender, Avast and AVG provide decent baseline protection, but premium software typically offers faster detection, fewer false positives, additional features like VPNs and identity theft monitoring, and superior customer support. Premium is recommended for critical data or business use.
Modern solutions like Bitdefender and ESET are engineered to minimise performance impact through lightweight engines and cloud-based scanning. Older software or low-spec systems may experience slowdown during full scans. Real-time protection typically uses under 5% of system resources when idle.
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