1. Overview Windows Hello is a technology that allows Windows 10 users to authenticate to their PC with biometric identification, such as a fingerprint, iris scan or facial recognition. This enables users to log in to their PC faster and considerably more securely than using static passwords. None of us like passwords. They can be cumbersome to use and difficult to remember. Passwords are getting more and more insecure, being subject to phishing, massive leaks and other attacks that even the most security-savvy have trouble trying to stay ahead of.