microsoft defender application guard

Microsoft Defender Application Guard (MDAG) is a hardware-isolated browsing and document containment feature that uses Hyper-V containers to protect Windows systems from untrusted websites and files. Microsoft has announced the retirement of MDAG, removing it from new Windows 11 images starting with version 24H2 and setting a final support cutoff of November 10, 2026, aligned with the end of servicing for Windows 11 version 23H2. Organizations relying on MDAG should plan migration to alternative security solutions such as Windows Defender Application Control (WDAC), AppLocker, Microsoft Edge sandbox, Azure Virtual Desktop, or Microsoft Defender for Endpoint. This tag covers discussions about MDAG retirement, migration planning, and related security features.