That wasn’t an insult. An insult (with a rhetorical question thrown in for bonus internet pointz) would be something along the lines of ‘Who the hell in this day and age is monumentally stupid enough to put Vista on anything, let alone connect it to the internet and then follow it up by inflicting such horrendous life choices on an unsuspecting third party, such as a child?’ You see the difference?
You made a choice based on what appears to be a limited understanding of your options and the implications, ignored earlier warnings and explaination of why the issue you have exists for a very good reason and offered unsound justifications, now you’ve chosen to read something as an insult simply because it points out (again) that it’s a really bad idea.
How do you know she won’t try and do her online banking, update her CV, download a load of PDF’s of bills etc. and account statements and start saving her nudes on it between now and Christmas?