This article is bit different from most others. In this post I’ll be sharing a current issues I have with Defender Application Guard. If you have some suggestions of any additional troubleshooting, I’d love to hear, because currently, I’m not having much luck finding a solution.
The issue is that if I go into the new Edge browser and select a New Application Guard Window, I end up with:
WDAG Report – Container: Error: 0x80070013, Ext error: 0x00000001; RDP: Error: 0x00000000, Ext error: 0x00000000 Location: 0x00000000
I have tried the wdagtool command line tool with the following result:
I have also run a:
across my machine with no integrity issues.
If I dig into Event viewer | Application and services log | Microsoft | Windows | WDAG-Manager, I see:
A Failure has occurred: HResult = The media is write protected., File = windows\hvsi\hvsimgr\container\hvsicontainer.cpp, LineNumber = 769, Function = NULL, Message = NULL, CallingContext = NULL, Module = hvsimgr.exe, Code = NULL
and in Event viewer | Application and services log | Microsoft | Windows | WDAG-Service, I see:
Container service failed to start the container: The media is write protected.
I have the App Guard Service enabled in my Windows Features as well.
I have tried:
- Re-installing Windows
- Re-running Windows install again
- Removing all App Guard components, rebooting, reinstalling all the components again and rebooting
- Installing Hyper V service
- Installing Sandboxing Service
I am still trying to resolve this issue, and have tried quite a few knowledgeable people who haven’t had much luck either. So, if you have any suggestion of what may help, please let me know.