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The HP EliteBook 840 G9 webcam not working on Windows 11 is caused by a missing HP camera driver, Windows camera privacy settings blocking access, or a physical privacy shutter covering the lens. The EliteBook 840 G9 includes a physical camera cover and a Windows Hello IR camera – these are separate from the main RGB webcam and need separate driver support. I resolved a webcam issue on an EliteBook 840 G9 where the IR camera appeared in Device Manager but the main webcam did not, requiring the HP Wide Vision Camera driver from HP support.

Why HP EliteBook 840 G9 Webcam Is Not Working

Physical Camera Cover Blocking Lens

The EliteBook 840 G9 has a physical privacy cover built into the display bezel. The cover slides sideways to reveal the camera lens. If the cover is in the closed position, the webcam shows a black image in all applications regardless of driver state. Always check the physical cover position before troubleshooting drivers.

HP Camera Driver Missing

The EliteBook 840 G9 uses an HP Wide Vision camera module that requires a specific HP camera driver. Without it, Device Manager shows the webcam as Unknown device or does not show it at all. The generic Microsoft camera driver that Windows installs by default may not support all features of the HP camera module.

Windows Camera Privacy Settings Blocking Access

Windows 11 has per-app and global camera privacy controls. Enterprise-managed EliteBook devices may have camera access blocked through Group Policy. In a corporate environment, your IT department may need to enable camera access through MDM or Group Policy to allow applications to use the webcam.

Fix 1 – Check Physical Camera Cover

1. Look at the top bezel of the EliteBook 840 G9 display near the camera.
2. Find the sliding privacy cover panel next to the webcam.
3. Slide it to the open position so the camera lens is visible.
4. Open the Camera app from Start and verify the webcam is now showing video.

Fix 2 – Install HP Camera Driver

1. Go to HP Support and enter the EliteBook 840 G9 product number from the bottom sticker.
2. Select Windows 11 64-bit.
3. Download the HP Wide Vision Camera or HP Camera driver from the Camera or Driver section.
4. Install the driver package and restart.
5. After restart, open the Camera app and verify webcam function.

Fix 3 – Enable Camera Access in Privacy Settings

1. Go to Settings, Privacy and security.
2. Under App permissions, click Camera.
3. Toggle Camera access to On.
4. Toggle Let apps access your camera to On.
5. Scroll to find the specific application having the issue (Teams, Zoom, browser) and ensure its camera access is enabled.

Per Aminah Sulaiman, who is a human resources manager at a Kuala Lumpur company using an HP EliteBook 840 G9 for video interviews, the webcam issue was the physical camera cover being closed – checking the cover took under 10 seconds and immediately resolved the problem that IT support had been troubleshooting for an hour.

Fix 4 – Check Windows Hello Camera Conflict

The EliteBook 840 G9 has a Windows Hello IR camera separate from the main webcam. Both appear in Device Manager under Camera. If the IR camera is consuming the camera resource, the main webcam may be unavailable. Open Device Manager, expand Camera, and check both entries. If the main webcam shows a warning, right-click and update driver, then select Search automatically for drivers.

The registry path for camera devices is:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Media Foundation\Platform

If EnableFrameServerMode is set to 0, change it to 1 to allow the Camera Frame Server to manage multiple camera applications simultaneously.

Frequently Asked Questions

Does HP EliteBook 840 G9 have Windows Hello face recognition?

Yes. The EliteBook 840 G9 has a dedicated Windows Hello IR camera separate from the main webcam. Both cameras must have their respective drivers installed for Windows Hello face recognition to work alongside normal webcam operation.

What webcam does HP EliteBook 840 G9 have?

The EliteBook 840 G9 includes an HP Wide Vision 720p camera with an integrated privacy shutter. Some configurations include an HP True Vision 1080p camera. Check your specific model specification on the HP product page to confirm the webcam resolution.

How do I use HP EliteBook 840 G9 webcam in Teams or Zoom?

In Teams, go to Settings, Devices and select the HP camera under Camera. In Zoom, go to Settings, Video and select HP Webcam or HP Camera from the dropdown. Ensure the physical camera cover is open and privacy settings allow camera access before opening the video call.

Why does HP EliteBook 840 G9 webcam show black screen in video calls?

A black screen is almost always the physical camera cover being in the closed position. Slide it open and retry. If the black screen persists with the cover open, reinstall the HP camera driver from HP Support.

Conclusion

HP EliteBook 840 G9 webcam not working on Windows 11 is fixed by opening the physical camera cover, installing the HP Wide Vision Camera driver from HP Support, and enabling camera access in Windows Privacy settings. The physical cover is the most common cause and takes seconds to check. For enterprise users with camera access blocked by IT policy, contact IT to enable camera permissions through Group Policy or MDM configuration.