Ive used Windows Hello before with the Intel RealSense 3D camera, and the login process is very easy to set up. You just got into settings, choose Accounts, and then Sign-in options. You have to have a password set already, as well as a PIN. If you dont have both of those set up, create those, and then you can set up Windows Hello. It will pop up a window and ask you to look into the camera and keep your head centered in the display, and thats it. You can run through the setup a few more times as well to improve recognition if youd like, and Microsoft recommends that if you wear glasses, perform the setup with your glasses on and off.
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My only real concern was that the Microsoft system may not be as quick as what I have used previously with the Intel camera system, but that is not the case. The actual time to login to the desktop is much longer than the recognition, which is incredibly fast.
Ive said it before, and Ill say it again here now. Windows Hello is one of those Wow moments in computing which are few and far between. It really feels like the future.