I very much doubt she had no warning. You got two warnings and had to opt out. She probably just clicked through them. Check the event log and scheduler logs. It will have the event in there saying the user consented to it. I had to find this on a machine after a user complained it didn't tell him and it clearly did and he clicked through.

> I don't know what you mean by "this has to be done", there is no obligation to apply updates. What if I want my computer to run a windows without updates ? Am I not entitled to use my own property as I so choose ?

If your machine becomes a botnet node and causes problems for other people, which is a big problem, then you forfeit the right. The same thing if your apartment leaks water into another one. Be a good citizen.

Failed updates, now that's the only valid part of your point. I've had a few and they weren't disruptive but this is just my case.