Problem with Microsoft Edge

Nine Number 20

Hello Microsoft, I have a script that opens the Msedge browser and logs off when I try to close it. The script is written in PowerShell and deployed to domain computers using GPO (User Configuration -> Windows Settings -> Logon/Logoff Scripts). The script seems to work as intended, but when it comes to websites that require access to video and microphone, the browser starts to slow down and simply can't access the site. This occurs on absolutely all websites that require access to video and microphone. However, if I run the script locally and not through GPO, everything works correctly, including access to the camera and microphone. Could you please tell me what the problem might be?

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Ответ, принятый автором вопроса

Randy Baroja 20,785 Независимый помощник

Hi,

It sounds like you’ve really tried everything under the sun here, PowerShell, Python, SYSTEM context, even editing the registry and trying the Shell parameter trick. I totally get why you’d be feeling at a loss; this isn’t something that’s widely documented. One thing that often trips people up in situations like this is Edge’s Application Guard. Even if you’ve enabled AudioCaptureAllowed and VideoCaptureAllowed and allowed specific URLs, if Edge is running in an isolated container, it can still block the camera and microphone. There’s a policy specifically for that, Allow camera and microphone access in Microsoft Defender Application Guard, and a related registry key (EnableCameraMicrophoneRedirection) that might need to be set to let hardware through.

Kind regards

Nine Number 20 Баллы репутации

2025-10-07T13:48:23.22+00:00

Okay, please tell me where to find the parameter EnableCameraMicrophoneRedirection ?
Randy Baroja 20,785 Баллы репутации Независимый помощник

2025-10-07T13:54:06.09+00:00
Hi,

The EnableCameraMicrophoneRedirection setting is a registry key that controls whether camera and microphone access is allowed in virtualized or sandboxed environments, like Microsoft Edge Application Guard. It’s not exposed in the regular Windows Settings UI, so you have to add or modify it directly in the registry. Here’s where to look:

Registry path:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Hvsi

Value name:

EnableCameraMicrophoneRedirection

Type:

DWORD (32-bit)

Value to allow redirection:

1

If the Hvsi key or the EnableCameraMicrophoneRedirection value doesn’t exist yet, you can create them manually:

Open regedit (Registry Editor).

Navigate to HKEY_LOCAL_MACHINE\SOFTWARE.

Right-click on SOFTWARE > New > Key > name it Hvsi.

Right-click on Hvsi > New > DWORD (32-bit) Value > name it EnableCameraMicrophoneRedirection.

Double-click the new DWORD and set the value to 1.

Restart the computer to make sure it takes effect.

Always back up your registry before making changes, just in case something goes sideways.

Regards,
Nine Number 20 Баллы репутации

2025-10-08T11:31:25.9366667+00:00

I also noticed the DisableHvsi parameter in the path HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Hvsi . Could you tell me if I should disable Hvsi altogether?

Дополнительные ответы: 5

Randy Baroja 20,785 Баллы репутации Независимый помощник

2025-10-06T13:42:17.29+00:00

Hi,

Check your Group Policy settings to ensure microphone and camera access is allowed (Computer Configuration > Administrative Templates > Windows Components > App Privacy), as GPO can override local permissions. Verify whether Microsoft Edge’s Application Guard is enabled, since it can block hardware access, and adjust or disable it if necessary. Test the script manually on a machine where it’s deployed via GPO to see if the problem occurs outside of automatic execution this can help determine if the issue is with the GPO context itself. Finally, review the Event Viewer for any errors related to the script or hardware access, as these messages often reveal exactly what’s being blocked and why.

Kind regards,
Этот ответ помог вам?
Nine Number 20 Баллы репутации

2025-10-06T16:14:02.1433333+00:00

In your opinion, I have enabled a policy to allow Windows applications to access your camera and Allow Windows apps to access your microphone. I have specified the "Force allow" option in the policy, but the problem still persists. I also looked in the Windows Privacy and Protection settings -> Microphone, the microphone access to Microsoft Edge is also allowed there.

Nine Number 20 Баллы репутации

2025-10-06T16:16:19.8966667+00:00

I also tried to run the script via vbs specifying the system user "nt authority\system"
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Problem with Microsoft Edge

Дополнительные ответы: 5

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