Windows Hello is a new feature of Windows 10 that allows users to sign-in into their Windows 10 PC/laptop. It comes with a biometric security option through which users can log in to their system without the need for a password.
It is the most secure way to sign in to your Windows 10 device, app or service. Windows Hello supports facial recognition, fingerprints and works by scanning the iris. It supports Infrared Technology that allows the facial recognition feature to work.