I Think this is down to a Security level issue in IE (Not certain

)
But looking elsewhere I did find a "Possible" cause of this message (An Educated guess?

)
Open IE Tools >Internet Options.
Click on the Advanced Tab.
Scroll down the list until you see the 2 lines that start with "Enable Install on Demand"
The top one is for Internet Explorer:"Enable Install on Demand(Internet Explorer)
The Other is for anything else:"Enable Install on Demand(Other)
The Internet Explorer line
should NOT be ticked

But the line below
Should be ticked

Press the APPLY button then the OK button to save and exit this window
If that message still appears then repost ?