Microsoft Defender offers great protection from malware -- but there are other online threats you might want to consider, too.

Microsoft Defender isn't enough to fully protect your PC. You don't have to pay extra, though—just use one of the top free antivirus apps we've tested.

Use left and right arrow keys to seek audio. Do you suspect your computer might be infected with a virus? It might show obvious signs like sudden slowdowns or endless pop-ups, or it might silently spy ...

Best Antivirus Best Antivirus Software for Windows PCs in 2026 Discover the highest ranked antivirus programs for Windows 10 and 11. See whether you need to save or splurge to protect your device, ...

PCWorld examines whether Windows 11’s built-in Microsoft Defender security suite provides adequate protection for everyday users without third-party antivirus software. Windows 11 includes ...

Best Antivirus Best Antivirus for Windows 11: Fast, Lightweight & Secure Windows 11 users face growing cyber threats, from ransomware and phishing to occasional zero-day exploits. Choosing the right ...

Antivirus software is necessary to install on a computer as it offers protection against several threats that can harm a computer. Windows 11/10 computers come with a built-in free antivirus software, ...