Why Dell Laptop Web Camera is Not Working
If the webcam is not recognized in Webcam Central software, please follow the steps mentioned below to update the webcam drivers.
Open “Device Manager” by clicking the Start button. In the search box, type “Device Manager,” and then in the list of results, click “Device Manager.”
When Device Manager appears, in the list, please check “Imaging Devices”.
Under “Imaging Devices,” check to see if you can find a webcam.
Right-click on the available webcam and click “Uninstall”.
Check the box that says remove the software and click "OK."
Restart the system and check for resolution.
Additionally, I suggest you download “Dell Webcam Central” and install it.
Read More : https://helphow.org/how-to-fix-dell-laptop-camera-not-working-issue/