Just to bring to your attention if you haven't seen this post: http://blogs.windows.com/windowsexperience/2015/10/29/making-it-easier-to-upgrade-to-windows-10/ Microsoft will begin pushing out Windows 10 to unmanaged pcs. If you don't want it, ensure you add a registry key noted https://support.microsoft.com/en-us/kb/3080351 as follows: Subkey: HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate DWORD value: DisableOSUpgrade = 1 Also in that blog post is the statement "As an example of direct response to feedback we’ve received, we will be improving our documentation of what has changed within any individual update, and improving scheduling options for when updates are installed". We will have to see if this comment and the resulting changes provides enough control and communication as we need. Thank you.again for your support and please still urge others to sign the petition.