Hello there! I am Charity, I'm an Independent Advisor. I'm glad to help you today!
My apologies about that. Please try reinstalling Windows hello feature.
Go to Settings > Apps > Optional features.
Under the “Installed features” heading, type “facial recognition” (or "Windows Hello") in the search bar.
Click on the feature and select Uninstall if it’s still there. Restart your computer.
Go back to Settings > Apps > Optional features.
Click on View features next to “Add an optional feature”.
Search for “Facial Recognition (Windows Hello)” and select it. Click Next, then Install.
Restart your computer after installation.
Please keep me know if this worked for you.
Kind Regards,
Charity