• Type Services in windows search and open it
  • Right-click the Windows Biometrics Service from the list and click Stop.
  • Then Open File Explorer.
  • Navigate to this location: C:\Windows\System32\WinBioDatabase.
  • Delete all the .DAT files in the folder. If you can't see contents in the folder, click the View tab in File Explorer and check Hidden Items.
  • After deleting the .DAT files, restart Windows Biometrics in Services or restart your PC