I have a Windows Server 2008 R2 machine that keeps on rebooting even though I tell it not to do so after automatic updates are installed. I am certain that no group policy is applied to this server to produce this result, and yet, it keeps changing from "Download but let me install" to "Automatically install and reboot," roughly speaking.
I have a strong hunch that somebody may be changing this setting back without realizing the potential damage it can cause, but I've no way to prove it.
Is there any way to determine who changed Automatic Updates settings and/or when they were changed?