As computer repair specialists in London, we see the results of poor antivirus protection every day. Choosing the right antivirus software is one of the most important things you can do to protect your PC or laptop. Here's our expert comparison of the best options in 2026.
Do You Need Antivirus Software in 2026?
Yes — absolutely. While Windows 11 includes Microsoft Defender, which provides solid baseline protection, dedicated antivirus software offers additional layers of protection including real-time web protection, phishing detection, ransomware shields, and more. Cyber threats continue to evolve rapidly in 2026, making robust antivirus protection more important than ever.
🥇 Best Free Antivirus: Microsoft Defender
Microsoft Defender (built into Windows 10 & 11) has improved dramatically in recent years and now scores well in independent lab tests. It's completely free, doesn't slow down your computer, and integrates seamlessly with Windows. For basic users who practice safe browsing habits, Defender is a solid choice.
Cons: Limited extra features, no cross-device protection
🥈 Best Paid Antivirus: Bitdefender Total Security
Bitdefender Total Security consistently tops independent antivirus lab tests with near-perfect detection rates. It includes a VPN, password manager, parental controls, and a ransomware remediation tool. It's lightweight and won't slow down your computer.
Cons: Paid subscription required
🥉 Best for Families: Norton 360 Deluxe
Norton 360 Deluxe covers up to 5 devices and includes a VPN, dark web monitoring, parental controls, and 50GB of cloud backup. It's particularly good for families who want comprehensive protection across multiple devices.
Cons: Can be resource-intensive, higher price
Best for Performance: Kaspersky Standard
Kaspersky Standard is known for having minimal impact on system performance while maintaining excellent detection rates. If you have an older or slower computer, Kaspersky is worth considering.
Cons: Some controversy over Russian origins (though widely used in UK)
Best Free Alternative: Malwarebytes Free
Malwarebytes Free is excellent as a second-opinion scanner alongside Windows Defender. It's particularly good at detecting adware, spyware and PUPs that traditional antivirus tools sometimes miss. The free version doesn't offer real-time protection, but it's great for on-demand scans.
Cons: No real-time protection in free version
Our Recommendation
For most home users in London, we recommend Bitdefender Total Security for comprehensive protection, or Microsoft Defender + Malwarebytes Free as a free combination. For families, Norton 360 Deluxe offers the best value for multi-device protection.
Remember: even the best antivirus software isn't 100% foolproof. If you suspect your computer has been infected, our professional virus removal service is available same day across London.
🛡️ Already Got a Virus? We Can Help.
If your antivirus hasn't caught a threat, our London technicians can remove it same day. No fix, no fee.
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