Disable Windows 10 upgrade notification

Windows 10 Upgrade Notification
Windows 10 Upgrade Notification

This week Microsoft announced it will be releasing Windows 10 on July 29th. Which is a good thing! They also started activating a pop-up notification which allows users to pre download Windows 10 to their system and install it as soon as it get out on July 29th.

This is not something I want my users to do on their own.