Windows Hello and Companion Device Framework

Windows Hello works with the Companion Device Framework to enhance the user authentication experience. Using the Windows Hello companion device framework, a companion device can provide a rich experience for Windows Hello even when biometrics are not available (e.g., if the Windows 10 desktop lacks a camera for face authentication or fingerprint reader device, for example).


The API for the Windows Hello companion device framework is deprecated in Windows 10, version 2004 and later.