Upgrading a Domain Controller

You can upgrade Windows Server in two ways 2012 domain controller. You can upgrade Operating system to an existing domain controller Running Windows Server 2008 or In Windows Server 2008 R2. Alternatively, you can It can be introduced in Windows Server 2012 server in the domain controller that contains a domain passing the domain controller Version of Windows Server. Both in The second is because , when the preferred method When finished, you have a clean installation Windows Server 2012 server operating system and AD DS database .

Deploying Windows Server 2012 Domain Controllers
To upgrade the operating system of a Windows Server 2008 domain controller to Windows Server 2012, perform the following steps:
1. Insert the installation disk for Windows Server 2012, and then run Setup.
2. After the language selection page, click Install now.
3. After the operating system selection window and the license acceptance page, in which type of installation do you want? Windows, click Upgrade: Install Windows and keep files, settings, and apps