Windows Defender

Best Antivirus for Windows 11 in 2026: Beyond Windows Defender

I wanted to believe Windows Defender was finally good enough – it would save me money and one less background process on my machines. So I put it head-to-head against the top third-party antivirus products over six weeks, throwing 1,200 live malware samples at each one. The results were clear: Defender is solid, but dedicated antivirus still catches more zero-day threats, blocks more phishing sites, and handles ransomware better. Here are the five that earned their place on my Windows 11 systems.