The , technically known as the TAP-Windows Virtual Network Driver , is a specialized software component primarily used by VPN services and network tools to create secure, encrypted tunnels on Windows 11. Review: TAP-Windows Adapter (Tap0901)

Most VPN clients install it automatically to route your internet traffic through their secure servers. Virtualization:

Ideally, this driver installs silently in the background when you set up a VPN. However, it often appears as an "Unknown Device" in the Device Manager if the installation fails, forcing users to manually point Windows to the C:\Program Files\TAP-Windows\ folder to resolve it.