Installation error in Windows 11: TAP device failed to install with error code 1

When installing Outline in Windows 11 I get “TAP device failed to install with error code 1” error message during installation (image of the error message below).

Even though I get the error message the Outline Client is still installed and I can run it, but when I try to connect to the server I get an error message “Sorry, it looks like Outline is not properly installed. Please try installing it again. If that doesn’t work, please submit feedback through the app.”

I have read https://github.com/Jigsaw-Code/outline-client/issues/1007 so I executed Get-NetAdapter command. However, the output didn’t have any TAP Windows Adapter V9 entries or anything else with a TAP. That hints the issue is different and probably related to the TAP adapter installation.

Does anyone know what that error code 1 means? Is there any verbose installation method to get more information about the failure? And most importantly, is Outline supposed to work in Windows 11?

System details:

• Outline Client Version: Windows 1.6.0
• Operating System: Windows 11

[thuonglt]

I have same problem. I have run on Windows 11 Pro(ARM) , run on Macbook M1 through Parallels

[navidei]

Same here on Windows 11 pro.