Hi!
The fingerprint sign-in method may have become corrupted. You can remove and re-add this sign-in method.
Go to Windows Settings > Accounts > Sign-in options > Fingerprint > Remove.
Restart your computer, and then add the fingerprint again.
If that doesn't work, please let me know the manufacturer and model of your laptop.
- Press WINDOWS + R > Type "msinfo32" > In System Summary, send me a screenshot.