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.

Microsoft’s latest rollouts to Windows 11 24H2 and Windows Server 2025 include the arrival of Recall and hotpatching. Here are the security settings and recommendations to note. Windows 11 24H2 and ...