Best Way to Fix Windows Hello Not Working

When Windows Hello stops working — face recognition failing, fingerprint sensor dead, or the PIN option greyed out — the cause is almost always one of a handful of things: a driver that broke during an update, a stopped service, a privacy toggle, or corrupted sign-in data. This guide orders the fixes from most to least likely so you’re not guessing.

One important note: a PIN is the foundation Hello builds on. If the PIN is broken, face and fingerprint won’t work either — so we fix the foundation first, even if the PIN isn’t the thing you personally use. Skipping straight to the fingerprint sensor when the PIN database is corrupted is the most common reason these fixes seem to “not work.”

If your Hello problems started right after a blue screen, stabilize the crashes first with our blue screen of death guide — Hello can’t stay fixed on a system that keeps crashing.

Why this happens

• Broken biometric driver: Windows updates frequently replace working fingerprint or IR camera drivers with incompatible ones.
• Windows Biometric Service not running: If this service fails to start, every Hello method fails with it.
• Camera privacy settings: A toggled-off camera permission silently kills facial recognition.
• Corrupted PIN data: The NGC folder holding PIN credentials gets damaged, blocking PIN and everything built on it.
• TPM problems: Hello’s keys live in the TPM; if it’s unprovisioned or its driver is broken, Hello can’t initialize.
• Missing optional features: The biometric framework components can go missing after major updates.

How to fix it

Work through these in order — each fix targets the next most likely cause.

Fix 1: Check camera privacy settings

The quickest win of all, and embarrassingly common after updates that reset permissions.

1. Go to Settings > Privacy & security > Camera.
2. Make sure Camera access and Let apps access your camera are both on.
3. If you use facial recognition, also verify the IR camera isn’t disabled in Device Manager under Cameras or Imaging devices.
4. Try Hello again — if it was a privacy toggle, you’re done in under a minute.

Fix 2: Reinstall the biometric drivers

Driver breakage from Windows Update is the single most common cause.

1. Open Device Manager (Win + X).
2. Expand Biometric devices, right-click your fingerprint sensor, and choose Uninstall device (tick Attempt to remove the driver for this device).
3. Under Cameras or System devices, do the same for the IR camera if facial recognition is broken.
4. Restart — Windows reinstalls the drivers automatically.
5. If Windows installs a generic driver that doesn’t work, download the proper one from your laptop maker’s support site, such as HP support or Lenovo support , using your exact model number.
6. After reinstalling, check Settings > Windows Update > Advanced options > Optional updates — the correct biometric driver is sometimes hiding there rather than in the automatic queue.

Fix 3: Restart the Windows Biometric Service

A stuck service blocks all Hello methods at once.

1. Press Win + R, type services.msc, and press Enter.
2. Find Windows Biometric Service and double-click it.
3. Set Startup type to Automatic and click Start if it’s stopped (or Restart if it’s running but wedged).
4. Click OK and test Hello at the lock screen (Win + L) — give the service a few seconds to fully initialize before testing.

Fix 4: Reset the PIN

Since everything Hello builds on the PIN, a corrupted PIN database breaks all of it.

1. Sign in with your password.
2. Navigate to C:\Windows\ServiceProfiles\LocalService\AppData\Local\Microsoft\NGC in File Explorer.
3. Delete the contents of the folder (take ownership if Windows prompts you).
4. Go to Settings > Accounts > Sign-in options > PIN (Windows Hello) and click Set up to create a fresh PIN.
5. Test the PIN at the lock screen before re-adding biometrics.

Fix 5: Re-enroll face and fingerprint

With the foundation repaired, rebuild the biometric templates.

1. Go to Settings > Accounts > Sign-in options.
2. Remove any existing Facial recognition and Fingerprint recognition entries first — stale templates conflict with new ones.
3. Set up facial recognition in good, even lighting; look directly at the camera during capture.
4. For fingerprints, enroll the same finger twice at slightly different angles for better recognition.
5. Sign out (Win + L) and verify each method works.

Fix 6: Check the TPM

If Hello still says it’s unavailable, the TPM may need attention.

1. Press Win + R, type tpm.msc, and press Enter.
2. The status should read “The TPM is ready for use.” If it says otherwise, click Clear TPM in the Actions pane (have your BitLocker recovery key ready if you use BitLocker).
3. Restart and let Windows re-provision the TPM.
4. Also check the BIOS/UEFI (F2, F10, or Del at boot depending on brand) to confirm TPM/Security Device is Enabled.

Fix 7: Repair system files and reinstall Hello components

For stubborn cases, repair the OS components Hello depends on.

1. Open an admin Terminal and run sfc /scannow, then DISM /Online /Cleanup-Image /RestoreHealth.
2. Go to Settings > System > Optional features > View features and confirm biometric-related features are installed.
3. Check Settings > Windows Update for pending updates — Microsoft regularly ships Hello fixes in cumulative updates.
4. As a last resort, create a new local user account and test Hello there; if it works, your original profile’s credential store is corrupted and migrating to the new profile is the pragmatic fix.
5. Test Hello in Safe Mode — if it works there but not in normal mode, a third-party startup program is interfering; disable startup apps in Task Manager to find it. Microsoft documents the full Hello troubleshooting flow on the Windows support hub .

Closing

Windows Hello failures look mysterious but they’re almost always mundane: a driver Windows Update broke, a service that didn’t start, a privacy toggle, or a corrupted PIN file. Work the list from Fix 1 down and you’ll find the culprit quickly — and once Hello is rebuilt on a clean foundation, it tends to stay fixed for good.

Frequently asked questions