Windows Hello is a feature in Windows 10 that allows you to log onto Windows using facial recognition or a fingerprint scanner. To set up Windows Hello, go to Settings -> Accounts -> Sign-in options and set up Windows Hello for Fingerprint or Face. Scanning multiple fingers enables you to log in using any finger. This gives you some redundancy if you lose a few fingers. You can only scan one face per login account, so don’t lose that 😉
Windows Hello can replace all forms of Windows authentication, and can even sign you in to other services requiring Windows authentication after being logged into Windows.
❗ Note: You must have a webcam for Windows Hello to be able to recognise your face, or a fingerprint scanner for it to scan your fingerprints.