When the scan finishes you will be presented with a list of available updates. Find KB911567 in the list and click the + sign next to it. Once expanded, there will be a checkbox underneath the information on the update ("Don't show this update again")...put a tick in this box. This will prevent the update from downloading automatically each time your machine updates.
There is something calling up that camera software...we need to find what that something is. Pay close attention to what you are doing when the error occurs...or more precisely, what the machine is doing. Does it happen when loading or viewing an image? Any particular application that is being used when it happens? Let's try to find a common thread.