I was have the same problem
Try this way its work for me
- Go to Windows Settings -> Accounts -> Access Work or School. The key setting is the "Work or School Account" with the colorful windows logo by it. Disconnect that. Don't touch the "Connected to whatever domain" setting.
- Then click on "Sign-in Options". Fingerprint and PIN are no longer greyed out. If it's still greyed out, then make sure "convenience PIN sign-in" is enabled.
- Restart
4.Add the PIN, then the Fingerprint.
- Update your windows
- Go back to "Access Work or School" in Settings -> Accounts. Click Connect and Enter the user's email address and password.