And she figured out the firewall all by herself? Wow!
What I'm getting at: What you describe is exactly what gets underestimated: Most of the average users *can* use Windows - but *only* because they have someone like "you" holding their hand. And that's no different at all from doing the same on a Linux system.
Cheerio,
Thomas
Tell me about it - I'm sick of people asking me to fix their computers because they toasted Windows again....