Camera seems to be operating but shows a black screen even when the light is on. It just won't play.

[John-Just_1]

The key message seems to be 0xA00F4292<PhotoCaptureStartTimeout>. I've checked antivirus but that's not interfering. I've updated drivers that didn't need updating.  All permissions that need to be on are on. I'm really reluctant to get into system restore territory but it's looking increasingly as if some Windows update or other has stymied the camera.

[Dragon-Fur]

@John-Just_1 

Try / Consider

There might be a few "moving parts" to the process:

• Application(s) for camera .  Uninstall application from Apps and Features > Install new Application 
• Drivers.  Driver software be updated or simply uninstalled and reinstalled at boot.  If needed, the Driver software can be downloaded from within the Device Manager or from from your computer's Software and Drivers support Website
• Camera Reset option (also in Apps and Features) - check permissions, too.

For example,

Settings > Apps > Apps and Features 

Camera > Advanced Options 

Scroll down, click Reset

Software and Drivers

Cyberlink Youcam Software

References

HP PCs - Webcam Troubleshooting (Windows 10, 😎

and

semi-related - included for those reading:

Webcam not found/working on HP Spectre x360 or HP ENVY (x360) | 0xA00F4244<NoCamerasAreAttached>

Reference and Resources – Places to find help, solve problems, and learn about your Device

Clarification of terms and "what the device can do" (Specifications)

Device Homepage

NOTE:  Content depends on device type and Operating System

Categories:  HP Drivers / Software and BIOS, How-to Videos, Bulletins/Notices, How-to Documents, Troubleshooting, User Guides, Service and Maintenance Guide (Replacement Parts and Procedures), Product Information (Specifications), more

When the website support page opens, Select (as available) a Category > Topic > Subtopic

HP Pavilion Notebook - 17-g036sa (ENERGY STAR)

Thank you for participating in the HP Community Forum.

We are a world community of HP enthusiasts dedicated to supporting HP technology.

[John-Just_1]

Many thanks Dragon-Fur but, so far, I'm no farther forward. I went into Apps and Features but, curiously, the option to uninstall was greyed out.

I've previously gone into Device Manager and tried updating drivers, uninstalling and reinstalling drivers (always restarting each time so I don't forget the basics). But no dice.

I've reset the camera in Apps. Didn't work.

All permissions are on including antivirus software. Really puzzling.

[Dragon-Fur]

@John-Just_1 

You are welcome.

I am sorry nothing is working as expected.

At least the hardware is showing up in the Device Manager - that is not helpful, I know, but at least the camera is detected and that is something.

Some of the newer notebooks have a tiny "kill switch" on the outside of the notebook to switch the webcam on / off  - but this, too, even assuming there is a on/off switch, does not cause the error (at least not that I am aware).

If I run across something actually useful, I will post back.

Thank you for participating in the HP Community Forum.

We are a world community of HP enthusiasts dedicated to supporting HP technology.

[John-Just_1]

I appreciate your efforts. I have also noticed when logging on that a black square appears slap bang in the middle of the screen as if on top of the screen wallpaper image - but very briefly before disappearing and the log-on process then continues apparently normally. Don't know if that's significant. Maybe I need to run a deep scan from my antivirus software.

If you do hear of a solution do please get back to me. Thanks again.