Look for a small slider directly above the camera lens. If you see a striped or solid pattern, the lens is blocked; slide it to the side to uncover it.
The simplest way is using the built-in . how to use the camera on a hp laptop
Some models, such as the Spectre or Envy series, feature a toggle switch on the left or right side of the chassis. Ensure this is in the "On" position. Look for a small slider directly above the camera lens