Hi @Elbaros,
Welcome to the HP Forums!
I understand that your Authentic Fingerprint sensor stopped working, after upgrading from Windows 7 to Windows 10 on your HP Pavilion DM4 3010tx Notebook. I am happy to help!
The only drivers that are available for this Notebook, are done through Windows 10 Updates. According to this guide, Where Do I Find Windows 10 Drivers and Software for My Model?
Most likely it is not working due to not having a Windows 10 driver available. Please make sure your Windows 10 is up-to-date.
Otherwise, I would recommend to rollback to Windows 7.
Please remember to return to this thread and mark 'Accept as Solution', if I have successfully helped you resolve the issue. If you wish to say 'thanks' for my effort to help, click the 'thumbs up' to give me a Kudos.
Hope this post helps! 🙂
RnRMusicMan I work on behalf of HPPlease click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" to say “Thanks” for helping!