I responded to the sibling comment a while ago, and I'd welcome you joining that thread.
But for a quick synopsis of my response to your statement:
1. Billions of people use computers with a variety of operating systems every day;
2. Thousands of people touch their first computer ever, every day, and very, very few run Windows;
3. Millions of people use computers every day and are still deeply confused when the start button moves.
Regardless, the point I was responding to was that Microsoft had some sort of special advantage over the run-of-the-mill enterprise soul-suckers like IBM or Oracle. They might; but they won't for long.
Ultimately, I don't see how any reasonable person could disagree with simply making note of the fact that Microsoft no longer has the ability to change the course of computing: enterprise or consumer.