For most people using a supported and fully updated Windows 11 computer, yes: Microsoft Defender Antivirus and the other protections inside Windows Security are sufficient as the primary antivirus.

Most people never see malware—but after decades of testing it, I can show you exactly what it looks like.

Learn how BitLocker, passkeys, Microsoft Defender, and other Windows 11 security features protect your data, accounts, apps, and devices.

Best Antivirus Best Free Antivirus for Windows 10 in 2026: Top Free Protection Options Compare the best free antivirus tools for Windows 10 in 2026, including real-time malware protection, phishing ...

Looking for the best antivirus for Windows 11? Check out our top picks to protect your device as well as your system and network to the core!

A phone displaying the Microsoft Defender logo, with the product page for Microsoft Defender Antivirus for Windows in the background - T. Schneider/Shutterstock Antivirus software is simply essential, ...

The operating system (OS) on your device is responsible for quite a number of tasks under the hood. One of the core functions of an OS is security, and companies do invest a lot of effort to ensure ...

Question: What does Trend Micro’s Internet Security do over Windows Defender? Answer: Cyber threats today aren’t just about viruses as phishing scams, ransomware attacks, and identity theft are all ...

Q: What does Trend Micro’s Internet Security do over Windows Defender? A: Cyber threats today aren’t just about viruses. Phishing scams, ransomware attacks and identity theft are all evolving, making ...