Hello, I am having the same issue with my Lenovo S340-15IIL Touch Laptop (ideapad). Can you specify the KB number of the windows updates that was uninstalled to fix your camera? I have several windows updates since the date of this article.
Thank you
Nobody ever identified the KB article number of the windows updates that were uninstalled.
I have seen too much traffic on this forum with lame responses to the most obvious issue of having the privacy shutter closed.
I tried all available drivers and was not able to solve my issue, until finally I opted to check the connection on the camera. I removed the display bezel enough to expose the camera's connection, place some pressure on it to make sure that it was well seated, replaced the bezel and restarted and the camera was then working.
I hope this is of help to others.