diff --git a/windows/security/threat-protection/microsoft-defender-application-guard/faq-md-app-guard.md b/windows/security/threat-protection/microsoft-defender-application-guard/faq-md-app-guard.md index 1dfee7b591..b5f906e1fe 100644 --- a/windows/security/threat-protection/microsoft-defender-application-guard/faq-md-app-guard.md +++ b/windows/security/threat-protection/microsoft-defender-application-guard/faq-md-app-guard.md @@ -159,3 +159,15 @@ Step 2: 3. Disable IPNAT (Optional): `HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\IPNat\Start = 4`. 4. Restart the device. + +### Why doesn't Application guard work, although it is enabled via GPO? + +Application Guard must meet all these pre-requisites to be enabled in enterprise mode: +https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-application-guard/reqs-md-app-guard +To understand why it is not being enabled in enterprise mode you need to check the status of the evaluation to find out what is missing. + +For CSP (Intune) you can query the status node via a Get as mentioned in this document: +https://docs.microsoft.com/en-us/windows/client-management/mdm/windowsdefenderapplicationguard-csp +In this page you will see the “status” node as well as the meaning of each bit. If the status is not 63, you are missing a pre-requisite. + +For Group Policy you need to look at the registry. Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HVSIGP Status. The meaning of each bit is the same as the CSP.