We have disabled automatic updates using the mms.cfg and verified that setting in the Flash Player settings.("Never check for updates" and grayed out). There is no Flash updater service running and no scheduled task for Flash updates. The clients are Windows 7 x64 with IE 8 or 11. This works for all users except a few. They periodically get the following screen:
Is there any other process / program that could trigger that update? I'm not even able to reproduce or force that behavior on a test machine.