If you haven't played around with implementing a lot of settings inside Group Policy before, you might be scratching your head a little at this point. The idea of self-regulating policies that remove their settings when the GPO no longer applies—that makes perfect sense, right? Isn't that simply the way that all GPO settings work?
Nope! There is another class of settings inside Group Policy that is not self-regulating, and does not have the ability to remove itself when its issuing GPO falls out of scope on a workstation. These settings get left behind, and continue to be present inside the registry of the machine long after the GPO has fallen away and is no longer applying to the computer.
Almost all of the GPO Policy ...