When you launch Windows Security on Windows 11, you may see a message You’re using other antivirus providers. This prevents you from activating the Real-time protection of Windows Defender against ...

Windows Defender is a capable antivirus solution built into Windows itself. Unless you’ve installed a different antivirus program on your Windows 11 or Windows 10 PC, your PC is using it right now.

Do you still need third-party antivirus on your Windows PC?

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 ...

We explore how Windows Security and Microsoft Defender protect your Windows 11 computer and why you might want to consider an alternative. Dianna Gunn built her first WordPress website in 2008. Since ...

Compare the best free antivirus tools for Windows 10 in 2026, including real-time malware protection, phishing defense, ransomware protection, VPN limits, ...

PCWorld outlines five essential Windows Defender configuration changes to optimize security and performance on new Windows PCs. Key adjustments include disabling redundant system tray icons, turning ...