Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
Question
Thursday, May 10, 2018 12:18 PM
Is there a place in the registry that stores fingerprint information? I am having trouble with removing/registering a new fingerprint on a users profile. I have linked my previous post that has everything else that I have tried.
Any help is appreciated.
All replies (4)
Friday, May 11, 2018 1:31 AM | 1 vote
No, fingerprints don’t store in registry.
They are stay in the path
C:\Windows\System32\WinBioDatabase\GUID].DAT
If you want to delete previous fingerprint, delete all .dat files here and restart computer, then go to sign-in option to configure again.
Regards
Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected].
Friday, May 11, 2018 12:06 PM
I tried that and it still is not working. Are there no registry keys that store references to fingerprints or point to this file path? Anything related to how many fingerprints are registered already?
Friday, May 18, 2018 9:07 AM
When you register your fingerprints via Microsoft Fingerprint Reader, the software updates your SAM account under the HKEY_LOCAL_MACHINE\SAM\SAM\Domains\Account\Users registry subkey.
This subkey is hidden; if you try to access it, you'll see only an empty SAM key. The actual passwords are stored in the HKEY_LOCAL_MACHINE\SOFTWARE\DigitalPersona\DB\Data\Users subkey.
In this subkey, each user whose fingerprints are registered has an entry. The main logon password is a binary value in the format S.MainSystemLogon.\3AC492E9-E0B8-497A-B4DF-2C360C7842EB\; the data for this value is the password. Web site passwords are in the format U.9C3CD43FDEE43E47.\3AC492E9-E0B8-497A-B4DF-2C360C7842EB\.
The HKEY_LOCAL_MACHINE\SOFTWARE\DigitalPersona\DB\Data\IdList subkey maps the value in brackets to the user ID.
The password data is encrypted and unreadable. However, unlike regular password storage, which is a hashed base process and not reversible, passwords that are used with Fingerprint Reader can be converted back to their regular format. Thus, you shouldn't use Fingerprint Reader to allow access to highly secure material because passwords can be unencrypted.
Regards
Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected].
Friday, May 18, 2018 9:10 AM | 1 vote
For your issue
- Stop the Windows Biometric Service
- go to C:\Windows\System32\WinBioDatabase, delete all files here
- Start the service again
- Register your fingerprint again
If still no help, delete the user profile on this computer, login again, re-configure fingerprint.
Regards
Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected].