This setting was changed from enabled/disabled to a bitmask in v1809, see diff here (look for AllowAppHVSI_ProviderSet):
https://github.com/mxk/win10-secure-baseline-gpo/commit/ccda26687a1e067b8e7c6b2da82eb45e4e7054fd?diff=split
In addition - The name has changed later, in v1903
from: Turn on Windows Defender Application Guard in Enterprise Mode
to: Turn on Windows Defender Application Guard in Managed Mode
See change in https://github.com/mxk/win10-secure-baseline-gpo/commit/b15ef9aff782645938b7278a165d0b983b1c50f1#diff-8be91b5c46ef5705c155b6a18bccfd24
look for PolicyDefinitions/en-US/AppHVSI.adml
⚠Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.
@weiss-gal - Thank you for submitting feedback.
I will get this issue over to the Win10 ITPro writing team for investigation.
Thank you for reporting and making the docs better. Much appreciated.
I made a note to request the team to update this when the work is complete.
@weiss-gal - From our understanding, the issue has been resolved based on the merged commit https://github.com/MicrosoftDocs/windows-itpro-docs/commit/6009dbbe4c9c9a964f861d95c11a5bbd3f8312df. If you feel it hasn't been resolved, please re-open this issue.
Thank you for your contribution to make the docs better! Much appreciated!
Most helpful comment
just had a look at https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-guard/configure-wd-app-guard
looks good