Laptop model?  

Fingerprint sensor not working 

Please chack tha scenes imitate  action  my complaint 

my finger print on my Dell Precision 7750 is not working. 

i tried everything like update of driver and other things but it is not showing in device manager also

Mine is a recurring problem with the fingerprint reader on my Dell laptop, and I would appreciate some help.

Device details:
- Dell model: Latitude 7320
- BIOS version: Dell Inc. 1.51.0, 5/26/2026
- Fingerprint driver name and version: 

Control Vault w/ Fingerprint Touch Sensor

Biometric devices
Broadcom Corporation
Location 513 (WBF Function)

Problem:
Since the recent Windows update, the fingerprint reader fails to read my fingerprint. It worked normally before. The failure also happens again whenever I leave the laptop running for a few days without shutting down, even without a new update. The device recognises no fingerprint and Windows Hello sign-in fails.

What I have tried:
- Restarting the laptop
- Re-registering my fingerprint in Settings > Accounts > Sign-in options
- Updating the fingerprint/ControlVault driver from Dell's website
- Running Windows Update and Dell SupportAssist

I understand Dell has documented a similar issue involving the ControlVault driver after a Windows update, so I would like to know whether my model is affected and what the recommended fix is.

Please advise on a permanent solution, and whether the driver, firmware, or Windows update is the cause.

Thank you,