If you try to register fingerprint for Windows Hello Setup using Sign-in Options page, Windows 10 shows the following error message:
That fingerprint has already been set up on another account. Try a different finger.
This error prompt when Windows 10 finds that the fingerprints are already registered with a different user account and now the user is trying to register the same fingerprints again for a new user account. Follow below solution steps to resolve the issue by removing the system file containing fingerprints data then perform fingerprint scan again.
Step 1: Press Windows + R keys together to open the Run dialogue box.
Step 2: Type
services.msc and press Enter key to open the Service Manager.
Step 3: Locate the Windows Biometric Service.
Step 4: Right-click on Windows Biometric Service and select Stop option from the context menu.
Step 5: Go to the following folder path:
Step 6: Delete all files present in this folder.
Step 7: Go back to Service Manager, right-click on Windows Biometric Service and select Start option to start the service.