Before installing the first Windows Server 2008 R2 domain controller (DC) into an existing Windows 2000, Windows Server 2003 or Windows Server 2008 domain, you must prepare the AD forest and domain. You do so by running a tool called ADPREP . ADPREP extends the Active Directory schema and updates permissions as necessary to prepare a forest and domain for a domain controller that runs the Windows Server 2008 R2 operating system. Note : You may remember that ADPREP was used on previous operating systems such as Windows Server 2003, Windows Server 2003 R2 and Windows Server 2008. This article focuses on Windows Server 2008 R2. What does ADPREP do? ADPREP has parameters that perform a variety of operations that help prepare an existing Active Directory environment for a domain controller that runs Windows Server 2008 R2. Not all versions of ADPREP perform the same operations, but generally the different types of operations that ADPREP can perform include the following: Updating ...
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