Before you arrange and use Active Directory, you need to install the operating system Windows Server 2008. Start by making certain the hardware you plan to use as domain controllers is able to run the operating system. This list shows you the minimum and recommended hardware levels for Windows Server 2008:
|1 GHz (x86 CPU) or 1.4 GHz (x64 CPU)
|512MB required; 2GB or higher recommended.
|10 GB required. 40 GB or more recommended.
|Super VGA or higher video card and monitor.
|Must be on the Windows 2008 Hardware Compatibility List.