Microsoft Loopback Adapter —now renamed the Microsoft KM-TEST Loopback Adapter
Since it is virtual hardware, it must be added manually through the wizard: Installing the Microsoft Loopback Adapter in Windows microsoft loopback adapter windows 11
The wizard opens. Click Next .
Some legacy or specialized software requires a network interface to be present to install or run correctly; the loopback adapter satisfies this requirement. Inter-Process Communication: microsoft loopback adapter windows 11
: Developers use it with tools like Wireshark and Npcap to inspect local traffic ( ⚠️ Known Issues in Windows 11 The Npcap Loopback Adapter - Microsoft Q&A microsoft loopback adapter windows 11