Hi. I'm David, and I'm happy to help you.
Please clarify the following:
Do you use the device's built-in camera or an external camera?
Perhaps your camera is hidden when the problem occurs. Next time this problem occurs, see if you can find it by enabling the "Show hidden devices" option in Device Manager.
- Press "Windows + X" and select "Device Manager";
- Click on the "View" menu and select "Show hidden devices";
- Expand "Cameras";
(If this category is not displayed, let me know.)
- If the camera is listed, right-click and select "Properties". Check if there is an error in "Device Status".
If you prefer, share a screenshot. Use the shortcut "Windows + Shift + S" to use the screenshot tool.
Also, share a screenshot of your system information.
- Press "Windows + R", type
msinfo32and press Enter.
Maximize the window and use the screenshot tool.
Looking forward to your reply.