You cannot without torrents - i.e. it is illegal as hell and Microsoft will do everything they can to make you use legal, even sledgehammering your computer so you can't even use Linux.
You can't, sorry. You have do something called "spend money". It means that you enjoy the full services of something and the producer enjoys the money that he makes from providing the service to you.
If you are willing to do it illegally, here are the steps: Go to google: google the word bitcomet. Click on the first link. It will take you to their website. Click on "free download" in the orange...