I tested the policy setting:
Settings
Agents/Plug-ins
Software
Patch Management
Windows
Default Software Update Plug-in Policy
notification tab - Show progress message
The confusion here is the default message they display for this notification policy. Which said something about updates are available.
Basically this opens a box once install starts displaying your message and slowly but surely does display activity and a bar. Once completed you must wait like anywhere from 60 seconds to 2 minutes and the box will disappear.
This is what I was looking for.