App-lied Communation Failure

(Working as the IT guy for some primary schools I get a mail from a teacher:)

Teacher: “You need to activate and install apps on my computer, because the computer says so. I get this message all of the time.”

Me: “Could you provide me some more information? What is the message exactly saying?”

Teacher: “All you have to do is activate and install apps.”

Me: “Okay, since you won’t answer my question, it all stops here. Have a nice day and good luck with your computer.”

(Never heard a thing about it anymore.)