One of the cool new features that shipped with Windows 10 is Windows Hello, that lets users sign in to their devices just by using their faces. Unfortunately the service needs some specialized hardware to work, but now you can use your Kinect for that task.
The way Windows Hello works is it scans your face with infrared light, which lets it detect depth and tiny details on your face. This means the system is much more secure than a simple face scan that any webcam can do, because you can’t actually trick it with a simple 2D image. It also why it can even identify between twins.
Unfortunately all this cool functionality requires specialized hardware, and only a few devices ship with the IR cameras needed for this to work. But some users are finding that they already own a top-notch depth-sensing, IR-blasting device: the Kinect.
And now, those users can setup their Kinects (v2 only, unfortunately) to be used to log in to Windows 10. All you need to do is download the preview version of the Kinect for Windows driver, and change a registry setting. Microsoft has a full tutorial and download links for all you need, just hit the source link below.