How to get Minecraft for free

Download Minecraft for Free
go to this link here
press on download

Open the launcher. Once the installation finishes, the Minecraft launcher should start up immediately. If it doesn't, you can always start it by opening it from the directory you installed it to.

Register an account.
click "Register." Without an account, you can't play the game at all — not even the demo.
Follow the prompts to register a username and password. You will need to provide a valid email address so that you can receive a validation email as part of the registration process.