Select your computer name at the top of the list, click the Action menu, and select Add legacy hardware . Start the Wizard: Click Next on the welcome screen.
Microsoft Loopback Adapter —now renamed the Microsoft KM-TEST Loopback Adapter microsoft loopback adapter windows 11
Installing the adapter is straightforward but requires navigating legacy settings in Windows 11: How to create a Microsoft loopback adapter in Windows 11 Select your computer name at the top of