How to reset IE9 security questions for an external app?

Hello,
When a link is launched from IE9 and needs to open in a different application, then a couple of security questions are presented before launching it for the first time.
How can I reset these questions? (the selection made)
Preferably, just for that type of link. Or alternatively, for all such questions.

Thanks in advance for any assistance!

Thank you, but since this isn't my PC, is there a way of reducing collateral damage?
If I reset everything, then I'm probably going to have to drive there a few more times to fix stuff that ceased working.