We couldn't find a camera compatible with Windows Hello Face

sure. see crest z's post earlier in this thread. that is what i was replying to that it helped me

I have tried all the above methods but yet still my windows hello face doesn’t work. Please I need further assistance.

Thanks !

Windows Hello Not Working,(We couldn't find a camera compatible with Windows Hello Face) on my device Surface Laptop i5

I already tried this options :

"Procedure 1 :

1. Open File Explorer, navigate to C:\Windows\System32\WinBioPlugIns\FaceDriver
2. Right-click on HelloFace.inf and click "Install"
3. If the file exists do the same thing for HelloFaceMigration.inf in the same directory

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Procedure 2 :

Check on your camera manufacturer's website if there is any update available for your camera.

For example if you have a Logitech camera check on the Logitech website for any update for your camera.

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Procedure 3 :

Click on Start button, type "cmd", right-click on "Command prompt" and click on "Run as administrator".

Copy-paste the following lines in the command prompt, one by one, pressing Enter after each line (to paste right-click at the top on "Administrator : command prompt" > Edit > Paste) :

DISM.exe /Online /Cleanup-image /Restorehealth

sfc /scannow

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Procedure 4 :

1. Click on the Start button, type "run" and click on "Run"
2. Type "services.msc" (without quotes) and click on "Ok"
3. Find "Windows Biometric Service", double click on it and click on "Stop"
4. With File Explorer go to C:\Windows\System32\WinBioDatabase and make a backup of all the files just in case. Move that backup outside of that folder.
5. Once backed up delete all the files in C:\Windows\System32\WinBioDatabase
6. Open another time "services.msc", double-click on Windows Biometric Service and restart it
7. Go to Start, type "settings", click on "Settings", go to "Accounts", "Sign-in options" and register the Face data again"

***Moved from Windows 10/Windows Hello, lock screen & sign in***

I tried all the above, but only managed to fix this issue by doing the in-place upgrade, detailed below. (Highlighted key bits in Bold)

1. Download the ISO file from https://www.microsoft.com/en-us/software-download/windows10
2. Under the subheading "Create Windows 10 installation media"
3. "Download tool now"
4. Install Media creation tool
5. Download the ISO of Windows 10
6. Open the ISO/Run the Setup.exe
7. "Upgrade" Windows 10"
8. This will go though the normal upgrade process and screens, replacing the key Windows 10 system files.
9. Once complete, hopefully it'll be working again!

Notes:

My "Biometric device" > "Windows Hello Face Software Device" reappeared in Device Manager, which seemed to be the missing component prior to that - at least for me.

Bingo - thanks for helping. The 'get help' worked when the other solutions didnt for me.

Yep, Art-A's June 4 method using Get Help app worked. It just reset camera. I would expect Troubleshoot Problems app to work as well.