Preparing the Forest and Domains Using Adprep

The introduction of Windows Server 2012 DCs into a Windows Server 2003/2008 R2 Active Directory requires that the core AD database structure, the schema, be updated to support the increased functionality. In addition, several other security changes need to be made to prepare a forest for inclusion of Windows Server 2012. The Windows Server 2012 DVD includes a command-line utility called adprep that will extend the schema to include the extensions required and modify security as needed. Adprep requires that both forestprep and domainprep be run before the first Windows Server 2012 DC can be added.

The adprep utility must be run from the Windows Server 2012 DVD or copied from its location in the \support\adprep\ ...

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