The history of the world
1. Bill, in his infinite wisdom, positions himself to take over the world by offering businesses a discounted copy of windows with every P.C. purchase.
2. If you want a job, you have to learn it.
3. Everyone hates it, and is extremely frustrated, but what are they going to do about it?
4. Later, there are plenty of new O.S.'s being developed, but it's too late. Business is already fully enveloped in windows, and people are not willing to learn a new operating system because of their very frustrating experience learning windows (not realizing that they don't have to actually learn new O.S's, because they are much better at their architecture by now).
5. LINUX and OSX comes along. Vastly superior, but not as "cheap" as windows (not in the monetary sense).
6. Some become very good at programming windows, and consider themselves "expert programmers", unfortunately; windows is all they know, and the world goes to shit.