Windows Hello Won’t Recognise You Anymore — Camera, PIN and Driver Fixes

29 Jul 2026
Windows Hello Won’t Recognise You Anymore — Camera, PIN and Driver Fixes

Windows Hello is designed to make signing into your computer quick and secure. Instead of typing a password every time, you can use facial recognition, a fingerprint or a device-specific PIN.

When it works, it feels effortless. When it suddenly stops recognising you, displays “This option is currently unavailable”, or refuses to accept your PIN, it can leave you locked out or repeatedly entering your full Microsoft 365 password.

Fortunately, most Windows Hello problems can be resolved without resetting the entire computer. The cause is usually a camera issue, a corrupted biometric profile, a problematic driver, a Windows update or a damaged PIN configuration.

Here is how to diagnose and fix it.

What Is Windows Hello?

Windows Hello is Microsoft’s biometric and PIN-based sign-in system. It supports:

  • Facial recognition using a compatible infrared camera
  • Fingerprint recognition using a supported reader
  • A device-specific Windows Hello PIN

A Windows Hello PIN is not simply a shorter version of your Microsoft account password. It is associated with one device and protected by that device’s security hardware. (Microsoft Support⁠)

That means a PIN problem does not necessarily indicate that your Microsoft account password has been compromised.

Why Has Windows Hello Suddenly Stopped Working?

Common causes include:

  • A Windows or manufacturer driver update
  • A disabled or malfunctioning infrared camera
  • Poor lighting or an obstructed camera
  • A corrupted facial recognition profile
  • Camera privacy settings being changed
  • A damaged Windows Hello PIN
  • Problems communicating with the Trusted Platform Module, or TPM
  • Enhanced Sign-in Security blocking an unsupported external camera
  • Security policies applied by your organisation
  • Firmware or BIOS updates affecting biometric hardware

Before making major changes, restart the computer properly. Choose Start > Power > Restart rather than simply closing the laptop lid.

A restart reloads the camera, biometric services and security hardware and can resolve temporary failures immediately.

Fix 1: Check the Camera and Your Surroundings

Windows Hello facial recognition usually relies on an infrared camera rather than the standard webcam alone.

Start with the simple checks:

  1. Clean the camera area gently with a soft, dry cloth.
  2. Remove any webcam cover or privacy shutter.
  3. Make sure the room is reasonably well lit.
  4. Avoid bright windows or strong lights directly behind you.
  5. Position your face at approximately the same distance used during setup.
  6. Temporarily remove hats, heavily tinted glasses or anything casting a shadow over your face.

Microsoft notes that uneven lighting, camera obstructions, accessories and changes to your appearance can reduce recognition accuracy. (Microsoft Support⁠)

Some laptops also have a physical camera switch or a keyboard button that disables the camera. Look for a camera symbol on the function keys or around the sides of the device.

Fix 2: Test Whether the Camera Works Normally

Open the built-in Camera app from the Start menu.

If you can see a normal image, the standard webcam is working. However, this does not guarantee that the infrared sensor required by Windows Hello is operating correctly.

If the Camera app is blank, frozen or displays an error:

  1. Open Settings.
  2. Select Privacy & security.
  3. Select Camera.
  4. Make sure Camera access is enabled.
  5. Make sure apps are allowed to access the camera.

You can also open:

Settings > System > Troubleshoot > Other troubleshooters

Run the available Camera troubleshooter if it appears on your version of Windows. (Microsoft Support⁠)

Fix 3: Improve or Re-register Facial Recognition

If Windows Hello occasionally recognises you but has become unreliable, improve the existing recognition profile.

Go to:

Settings > Accounts > Sign-in options > Facial recognition

Select Improve recognition and complete the scan again.

This is particularly useful when:

  • You have started or stopped wearing glasses
  • Your facial hair has changed
  • Your usual working environment has different lighting
  • The laptop is now positioned at a different height
  • Recognition works during the day but not at night

If improving recognition does not help, remove the existing profile and create a new one:

  1. Open Settings > Accounts > Sign-in options.
  2. Expand Facial recognition.
  3. Select Remove.
  4. Restart the computer.
  5. Return to the same page.
  6. Select Set up.
  7. Complete a fresh facial scan.

Microsoft’s current guidance for non-functioning Windows Hello enrolment includes removing the affected enrolment and registering it again. (Microsoft Learn⁠)

You will normally need your Windows Hello PIN to remove or recreate facial recognition.

Fix 4: Check the Camera in Device Manager

A Windows update may install a generic camera driver that operates the normal webcam but not the infrared components required by Windows Hello.

Right-click the Start button and select Device Manager.

Check the following categories:

  • Cameras
  • Imaging devices
  • Biometric devices
  • System devices

Depending on the manufacturer, you may see entries such as:

  • Integrated Camera
  • IR Camera
  • RGB-IR Camera
  • Windows Hello Face Software Device
  • Intel Imaging Signal Processor

Look for a yellow warning symbol, downward arrow or missing infrared camera entry.

If the device is disabled:

  1. Right-click it.
  2. Select Enable device.
  3. Restart the computer.

If no infrared or biometric device appears, select:

Action > Scan for hardware changes

Fix 5: Reinstall the Camera Driver

A corrupted camera driver is one of the most common reasons Windows Hello disappears or reports that it cannot find a compatible camera.

In Device Manager:

  1. Expand Cameras.
  2. Right-click the integrated or infrared camera.
  3. Select Uninstall device.
  4. Confirm the removal.
  5. Restart the computer.

Windows will attempt to detect the camera and reinstall an appropriate driver during startup. Microsoft recommends restarting after uninstalling a device so Windows can attempt to reinstall the driver. (Microsoft Support⁠)

After restarting, return to Device Manager and confirm that the camera has reappeared.

Use the Manufacturer’s Driver Where Possible

If Windows installs a generic driver and Hello still does not work, download the camera, chipset and biometric drivers from the computer manufacturer.

For example:

  • Dell Support
  • HP Support
  • Lenovo Support
  • Microsoft Surface Support
  • ASUS Support
  • Acer Support

Use the exact laptop model or service tag. Avoid downloading drivers from unofficial driver websites.

For business computers, your IT provider may deploy approved drivers centrally rather than allowing employees to install them manually.

Fix 6: Check for Optional Driver Updates

Windows sometimes places manufacturer drivers under optional updates rather than installing them automatically.

Go to:

Settings > Windows Update > Advanced options > Optional updates

Open Driver updates and look for anything relating to:

  • Camera
  • Biometric devices
  • Intel
  • AMD
  • Chipset
  • Firmware
  • System interface
  • Imaging

Install relevant updates, restart the computer and test Windows Hello again.

Do not install every optional driver blindly. Ideally, compare the proposed driver with the version recommended by the device manufacturer.

Fix 7: Roll Back a Recent Camera Driver

If Windows Hello stopped working immediately after an update, the newly installed driver may be the problem.

In Device Manager:

  1. Expand Cameras.
  2. Double-click the camera or infrared camera.
  3. Open the Driver tab.
  4. Select Roll Back Driver, if available.
  5. Choose an appropriate reason.
  6. Restart the computer.

The rollback button will be unavailable when Windows has no previous driver stored.

In that case, download the earlier approved driver from the manufacturer’s support website.

Fix 8: Reset Your Windows Hello PIN

Facial recognition and fingerprint sign-in depend on the Windows Hello PIN behind the scenes. If the PIN configuration is damaged, the biometric options may also stop working.

From the sign-in screen:

  1. Select I forgot my PIN.
  2. Verify your Microsoft or work account.
  3. Follow the instructions to create a new PIN.

From inside Windows:

  1. Open Settings > Accounts > Sign-in options.
  2. Expand PIN (Windows Hello).
  3. Select I forgot my PIN.
  4. Complete the identity verification.
  5. Create a new PIN.

Business devices may use Microsoft’s Windows Hello for Business PIN-reset service, depending on how the organisation has configured its identity environment. (Microsoft Learn⁠)

After resetting the PIN, remove and recreate facial or fingerprint recognition.

Fix 9: Try Your Password Instead

When Windows Hello is unavailable, you may still be able to sign in with your account password.

On the lock screen:

  1. Select Sign-in options.
  2. Choose the password icon.
  3. Enter your Microsoft account, local account or work account password.

Once logged in, repair or reset the PIN through Settings > Accounts > Sign-in options.

Make sure you know which account you are using. A Microsoft account password, local Windows password and work Microsoft 365 password may not always be the same.

Fix 10: Check Windows Biometric Services

Windows uses background services to manage biometric sign-in.

Press Windows key + R, type:

services.msc

Press Enter.

Find Windows Biometric Service.

It should normally be running. If it is stopped:

  1. Double-click the service.
  2. Set the startup type to Automatic.
  3. Select Start.
  4. Select Apply.
  5. Restart the computer.

On a company-managed device, service settings may be controlled by policy. Speak to your IT support provider before changing managed security services.

Fix 11: Check Enhanced Sign-in Security

Windows 11 can use Enhanced Sign-in Security, or ESS, to provide additional protection for biometric credentials.

On compatible Windows 11 devices, the setting may appear under:

Settings > Accounts > Sign-in options > Additional settings

Enhanced Sign-in Security can prevent some external or third-party cameras and fingerprint readers from being used with Windows Hello. (Microsoft Support⁠)

This is particularly relevant when:

  • The laptop’s built-in camera works with Hello but an external camera does not
  • Hello stopped working after connecting a new dock or monitor
  • You are using a third-party biometric accessory
  • Windows reports that it cannot find a compatible camera

Temporarily testing with the laptop’s built-in sensor can help identify whether ESS compatibility is the issue.

Businesses should not disable security features without assessing the consequences. An approved ESS-compatible camera is usually a better long-term answer than weakening the sign-in configuration.

Fix 12: Install Windows, Firmware and BIOS Updates

Windows Hello relies on several layers working together:

  • Windows
  • Camera drivers
  • Biometric drivers
  • Chipset drivers
  • Firmware
  • BIOS or UEFI
  • TPM firmware

Check Windows Update first:

Settings > Windows Update > Check for updates

Then check the manufacturer’s support tool, such as Dell Command Update, HP Support Assistant, Lenovo Commercial Vantage or the Surface app.

Install approved updates and restart when prompted.

Do not interrupt a BIOS or firmware update once it has started.

Fix 13: Repair Windows System Files

Damaged Windows system files can prevent Hello, the camera service or the sign-in settings page from working correctly.

Open Terminal as Administrator and run:

DISM.exe /Online /Cleanup-Image /RestoreHealth

When that has completed, run:

sfc /scannow

Restart the computer after both scans.

These commands repair the Windows component store and replace damaged protected system files where possible.

Fix 14: Check Whether the Computer Is Company Managed

On a business laptop, Windows Hello may be controlled through:

  • Microsoft Intune
  • Entra ID
  • Group Policy
  • Windows Hello for Business
  • Conditional Access
  • Enhanced anti-spoofing policies
  • Security baselines

Microsoft notes that enhanced anti-spoofing can apply a stricter recognition standard, which can make facial recognition more sensitive to poor lighting. (Microsoft Support⁠)

A work device may therefore behave differently from a personal laptop even when the hardware is identical.

Contact your IT team if:

  • Sign-in options are greyed out
  • Windows says settings are managed by your organisation
  • You cannot remove or reset your PIN
  • Facial recognition disappeared after a policy update
  • Multiple employees developed the same issue
  • Windows Hello repeatedly asks you to enrol again

Your IT team can check device compliance, identity policies, driver deployments and PIN-reset configuration.

Should You Clear the TPM?

Clearing the Trusted Platform Module is sometimes suggested as a Windows Hello repair, but it should not be an early troubleshooting step.

The TPM can protect:

  • Windows Hello credentials
  • BitLocker encryption keys
  • Device certificates
  • Virtual smart cards
  • Business authentication information

Clearing it without preparation could trigger BitLocker recovery or disrupt access to protected systems.

Before making TPM changes, confirm that:

  • Your BitLocker recovery key is available
  • Important data is backed up
  • You understand which business certificates are stored on the device
  • Your IT administrator has approved the change

For managed business computers, TPM troubleshooting should normally be handled by your IT provider.

What Not to Do

Avoid potentially damaging shortcuts such as:

  • Deleting Windows security folders without understanding their purpose
  • Downloading camera drivers from unofficial websites
  • Disabling antivirus or endpoint protection permanently
  • Clearing the TPM without securing the BitLocker recovery key
  • Removing the device from Entra ID without IT approval
  • Editing registry security settings from unverified online instructions
  • Reinstalling Windows before checking the camera and drivers

A Hello problem is usually repairable without wiping the computer.

A Sensible Troubleshooting Order

For the safest and quickest result, work through the fixes in this order:

  1. Restart the computer.
  2. Clean and uncover the camera.
  3. Test the Camera app.
  4. Check camera privacy permissions.
  5. Improve or recreate facial recognition.
  6. Reset the Windows Hello PIN.
  7. Check Device Manager.
  8. Reinstall or roll back the camera driver.
  9. Install approved Windows, firmware and manufacturer updates.
  10. Run DISM and System File Checker.
  11. Ask IT to review policies, TPM status and Windows Hello for Business.

This order begins with low-risk checks and avoids making unnecessary security changes.

When the Camera Might Have Failed

The infrared camera may have a hardware fault when:

  • It has completely disappeared from Device Manager
  • It does not return after scanning for hardware changes
  • Reinstalling the manufacturer’s driver makes no difference
  • The camera fails in manufacturer diagnostics
  • The issue remains after a known-good operating system test
  • The laptop has recently been dropped or exposed to liquid
  • The standard webcam works but the infrared sensor is never detected

A compatible external Windows Hello camera may provide a temporary alternative, although Enhanced Sign-in Security compatibility should be checked first.

Final Thoughts

Windows Hello failures are frustrating, but they rarely mean that the whole computer needs replacing.

The most common solutions are straightforward: clean the camera, improve the facial scan, reset the PIN, reinstall the infrared camera driver or install the latest approved manufacturer updates.

On business devices, the problem may also involve Intune, Entra ID, Windows Hello for Business or security policies. In those cases, repeated DIY changes can make the issue harder to diagnose.

Hamilton Group can investigate Windows Hello problems, repair camera and driver faults, review identity policies and help your employees regain secure access without unnecessarily resetting their devices.

For help with Windows login problems, device management or Microsoft 365 security, contact Hamilton Group on 0330 043 0069.

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