my integrated web cam shows up in hidden devices and under properties it says “Currently, this hardware device is not connected to the computer. (Code 45). To fix this problem, reconnect this hardware device to the computer.”. It did work originally and I asked (it is my employer's computer) to have an app installed to be able to take still images with the laptop. A Dell app was installed but it did fully work and the webcam disappeared. I still have access to the rear integrated camera but the integrated webcam is not able to be used. How can it be reinstated?