@87cadf05 They talk about that in the documentary. It happened because the Microsoft Office department asked about putting spreadsheets on the console and the Xbox team thought that would wreck the whole purpose of what they were trying to accomplish.

So someone from the Xbox team literally stole Windows from a server – without permission – and hacked a more streamlined version for the Xbox.

Bill Gates was completely incensed and said that Xbox team were destroying everything he was trying to accomplish.

They almost canned the whole project. But then someone at the meeting said, “But what about Sony?”

So Bill Gates was stuck with a dilemma. Either let Sony take over the living room or don’t run Windows on Xbox. Both were situations that he simply hated.

However, he finally said, “Let’s do this.”

By the way, that meeting eventually became known as the St. Valentine’s Massacre because Bill Gates completely went off on the Xbox team for hours on end.