Group Policy just keeps on growing. Introduced in Windows 2000 (as a replacement/enhancement for Windows NT’s System Policies), Group Policy gives administrators a powerful tool for controlling the behavior of Windows users and computers. And each subsequent version of the operating system has added more and more policies to your arsenal. Windows 8 is no exception, and at least one patient person actually sat down and went through the list to discover exactly what policies are new in the Windows 8 consumer preview that was released today. There are quite a few. Take a look at his findings here:
http://www.verboon.info/index.php/2012/03/new-group-policy-settings-in-windows-8-consumer-preview/