Google assistant is a great software developed by google.It is a virtual assistant that is primarily available on mobile and smart home devices. It can do every task you tell it by only saying it such as set alarm or call someone etc.
How to turn google assistant ON:
To turn google assistant on just press and hold home icon of your screen and this will be displayed on your screen:
Just press TURN ON and your google assistant will be on.Manage the settings of your assistant accordingly.
How to turn google assistant OFF:
To turn off google assistant again press and hold home button and this will be displayed on your screen:
Then touch the top right blue icon which display this on your screen:
Touch three dots and then touch setting,this will be displayed:
Touch phone which will display this on screen:
Here you go!now just turn google assistant off or disable it.Then this screen will be in your front and your google assistant will be disabled.
I have marshmallow device,I have successfully turned off google assistant and toled you step by step with screenshot as proof🔥.