Hi, I'm Benedict, an Independent Advisor. I'm here to help you.
Please try doing a System Restore, to revert your system settings back to a point prior to system updates or changes that have caused the said issue: https://support.microsoft.com/windows/use-syste...
If that doesn't help, try to check if the camera driver is disabled in Device Manager:
- Press Windows logo + X simultaneously in your keyboard or Right-click on Start.
- Click on Device Manager.
- Click on View tab, if the option "Show hidden devices" is not checked, then click on it.
- If the said driver appears under Cameras, right-click on it and select Enable device.
If that doesn't still help, then click the link below and try to download the camera driver and also search for firmware/BIOS update. Download and install them, if any.
https://www.dell.com/support/home/en-ph/product...
Please see if that helps.
Regards,
Benedict P.
Standard Disclaimer: There are non-Microsoft websites mentioned above. These pages appear to be providing accurate, safe information. Watch out for ads on those sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on those sites before you decide to download and install it.