That microsoft hasn't been dismantled through a major antitrust settlement is just - I hate microsoft too. Evidently the main focus of the company over the past few years has been to try and see how many different ways they can charge you more for everything. A Jay and Silent Bob quote that starts 'I hate them...' is appropriate.
It is actually still possible for you to install another operating system, it just takes a little more work.
A friend of mine once asked me if 'Microsoft is like, you have a Microsoft camera, and you need to buy only Microsoft film?'
And I said, no, actually, it's like you have a Microsoft car and you have to have a microsoft garage, a microsoft house, a microsoft yard, a microsoft dog, a microsoft cat, microsoft children, microsoft food, microsoft carpet, microsoft chickens, and a micro soft chicken coop, and ......