Go to run and type dcpromo and follow the steps
No, you do not. You only install Active Directory if the system is going to be a domain controller. If it is a member server or a standalone server Active Directory should not be installed.
Install active directory on the server run- type DCPROMO and carry on with the installation
In Windows Server 2011 it is called Active Directory.
Install active directory on the server
Active Directory was previewed in 1999, released first with Windows 2000 Server edition, and revised to extend functionality and improve administration in Windows Server 2003. Additional improvements were made in Windows Server 2003 R2. Active Directory was refined further in Windows Server 2008 and Windows Server 2008 R2 and was renamed Active Directory Domain Services. Active Directory was called NTDS (NT Directory Service) in older Microsoft documents. This name can still be seen in some Active Directory binaries.
Active Directory
ntds.dit
ntds.dit
The DNS Server Role and the active directory is not installed till the adds service is started on the server 2008.if the service is not started(one needs to check the option under roles of the server)the active directory installation wont happen.this feature is only in 2008 not in 2003.The active directory works as service in 2008
To install Active Directory on a Windows Server, a proper DNS (Domain Name System) name resolution is required. The server must have a DNS server configured, as Active Directory relies on DNS for locating domain controllers and other resources within the domain. It's essential that the server can resolve its own name and the names of other domain controllers in the environment. Additionally, the DNS zone for the domain should be properly set up to facilitate name resolution.
The following changes are available in Windows Server 2008 R2:Active Directory Recycle Bin Active Directory module for Windows PowerShell and Windows PowerShell™ cmdletsActive Directory Administrative CenterActive Directory Best Practices AnalyzerActive Directory Web ServicesAuthentication mechanism assuranceOffline domain joinManaged Service AccountsActive Directory Management PackBridgehead Server Selection
windows 2000 and above like 2k3 all editions, 2k8 with requisite Hardware. we need to make it Domain controller for active directory to work. We install AD to make it DC.