Hi,
You can enable Intel AMT through the Bios. Press <ctrl> +P while you reboot the system to get into the bios - this will take you to ME Bios settings, where you can enable AMT. You also have to install the proper bios and drivers for using Intel AMT.
These videos (Video1 and Video2) are a good place to start. The Start Here guide will give you step by step instructions on enabling and using Intel AMT feature.
Let us know if you have any further questions.
Thanks,
Sree