Windows 10: Camera is being blocked or used by another program/process..in the System

My camera is being blocked or used by another process. I've tried three cameras and gotten the same results so its not the cameras. I tested them and get the result that "Your webcam is being used or blocked by another program". Tried all the canned MS fixes. The cameras work fine but the output can't be seen/heard on the other end. I ran ProcessExplorer as Administrator to identify the processes searched for #vid that are using the camera and tried to kill the trees and got this result "System" when searched for "#vid" and if I do "kill process tree" it says "error opening interrupts: The

:)

 

System process blocks Port 80

You clearly don't understand the problem here. But I was able to solve it by doing the following:

• Activate IIS
• In Services disable the IIS service
• Reboot
• Port 80 is no longer blocked by the System process

 

Programs not working

In post 26 there were steps listed to fix the operating system corruption.
Are you able to follow them?
In post 29 was the suggested dism repair command.

 

Why did the startup window get cleared?

I didn't missed any step, the list was gone and gone , even after using lot of programs the programs were not listed in that list.