All Windows PCs come with a built-in security feature called Windows Defender Application Control (WDAC), which helps prevent unauthorized software from running by allowing only trusted applications.

Windows Defender Application Guard is a security tool built into Microsoft Edge that isolates browser sessions from the desktop in a virtual machine to prevent any malicious activity from reaching the ...

Microsoft is deprecating Defender Application Guard for Office and the Windows Security Isolation APIs, and it recommends Defender for Endpoint attack surface reduction rules, Protected View, and ...

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.

Microsoft plans to remove Defender Application Guard from Office by December 2027, starting with the February 2026 release of Office version 2602. The Microsoft Defender Application Guard for Office ...