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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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?

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Problem with Microsoft Edge

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