Red dot in the camera?

I got a Lenovo laptop present for my birthday. Everything was fine until I updated a Windows Update. Since then I have a red dot in my camera, everyone knows what it means (hacker etc.)

Hope the following help you:

A red point then signals that the camera is mechanically locked. Lenovo only offers ThinkShutter for the standard webcam.

- LG

This is purely privacy shutter, which means that your camera is mechanically locked. So that no hacker can watch himself even if he gains access to your webcam.

With the shutter closed, you can easily see that the webcam only sees red.

With the shutter open, you can now see my cell phone

how to fix this?