Windows 10 Hello facial recognition no longer works

You are not alone. A number of users have lost Hello after 1809. The following page may help.

https://www.bynarycodes.com/windows-hello-not-working-after-1809-update/

---

@rlyerly wrote:

Hello,

I have a Dell XPS 15 9575 2-in-1.  The two red IR dots near the camera no longer flash at the login screen, and after a few seconds Windows says please log in using your PIN. 

I know the IR camera driver is installed because it is listed as an "Integrated Webcam" under the "Cameras" group in the device manager. 

---

If you actually have two IR emmiters on that system, it may be different than mine.  On my 9365, there are two cameras listed under the cameras section in device manager.  On the properties window, Details page, one shows Realtek DMFT - RGB and the other shows Realtek DMFT - IR..

My system still shows Facial Rec is available and has had the 1809 update.

Thanks for the quick reply!  I went through most of the suggestions, but none of them seemed to work.  Doing a full system refresh or reset may be what's needed here.

I have no idea how the 9575's camera compares to the 9365's -- maybe just a form factor or generational camera upgrade?

Regardless, looking in the Device Manager I have the same two cameras that you mention -- "Realtek DMFT - RGB" and "Realtek DMFT - IR".

What I can't figure out is that I used to have 2 devices listed under "Biometric devices" - "Goodix fingerprint" and a "Windows Hello" device.  Now I only have the fingerprint device and I can't figure out how to get the Windows Hello driver for the camera back.

Windows may have a glitch but the first thing I would do is undo any prior Windows Hello options and start over.

The system should pick up the infrared camera and give you the Windows Hello option unless it is suffering some type glitch.

You might also download the drivers for both cameras.  Then go offline and uninstall both cameras and check the box to uninstall all drivers.

Then install the downloaded drivers and only go back online after you have rebooted the system.

I am still showing the Windows Hello Face device.  If it was on your system, you may see a version of it in Device Manager if you set it to see hidden devices.  Updating its driver may help bit it seems it is using the 17763.168 driver version.

On my system there many different drivers Dell will install.  Maybe, somehow one of those has been missed.

Just install C:\Windows\System32\WinBioPlugIns\FaceDriver\HelloFace.inf

iR

Same issue - Windows Hello stopped recognising the Realtek IR integrated camera in my Inspiron AIO 7775 on 13/12/19. Reinstalling driver had no effect most recent driver dates to 11/2017.

Had similar problems with dell monitor P2418HZm

My fix was to use  this driver https://www.dell.com/support/home/en-au/drivers/driversdetails?driverId=TN71G