Wondering why your Windows 11 face login doesn’t work sometimes? It’s because of Microsoft’s recent push for ‘enhanced security’.

If your PC only has one or the other, you don’t really have a choice — use whichever Windows Hello method is available to you. If it has both, then you can actually use both.

Facial recognition through Windows Hello has used IR sensors to save a 3D scan of a user's face, without the need for visual confirmation through a webcam, for years.