How does one stop windows from asking if I want windows 10?

[Windows Central Question]

A friend "upgraded" from 8.1 to windows 10, on the 29th of July. Only took him til late on the 31st to unwind this upgrade.

Now, every time he boots up, several messages come up, consecutively after saying no to the prior request, to update to windows 10.

He would like this to stop.

How do I accomplish this?

 

[runamuck83]

Accept the upgrade like a man? Lol dunno

 

[Big Papa Smurf]

Disconnect from the internet