In the late 90's and early 2000's Microsoft made a real effort to prevent people from being able to choose any operating system other than Windows. They've com

In the late 90's and early 2000's Microsoft made a real effort to prevent people from being able to choose any operating system other than Windows. They've come a very long way since then, but they still profit from the enormous amount of software infrastructure still being developed today that's Windows only. For example, they've made it easy to run native Linux applications on Windows but they've made little effort to run native Windows applications on Linux. Their old reputation still haunts them and not everyone is convinced that they love open source and user choice as much as they say.