[WindowsCentral.com]

You can now manage Windows Hello authentication from the Lock screen, and in this guide, we show you how to do it.
Starting with the April 2018 Update, Windows 10 will begin encouraging password users to set up Windows Hello for a faster and more secure alternative to sign-in, because this method of authentication is more reliable than traditional passwords.
One of the ways the Windows 10 April 2018 Update) will encourage password users to switch is by making the experience easier and faster to set up from the Lock screen without the need of using the Settings app.
Using this new option, you can quickly create a PIN, or set up Windows Hello Face or Fingerprint recognition, depending on your hardware configuration.

Full story from the WindowsCentral blog...