Active Directory Preparation Required
[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at http://go.microsoft.com/fwlink/?linkid=34707.]
Topic Last Modified: 2007-03-26
Microsoft Exchange Server 2007 setup cannot continue because the attempted domain preparation failed.
Exchange setup requires that the Active Directory directory service be modified for Exchange Server 2007 before domains in the Active Directory can be prepared.
To resolve this issue, prepare Active Directory with the Setup /PrepareAD command and then prepare the domains.
For more information about how to perform the PrepareAD process, see "How to Prepare Active Directory and Domains" (http://go.microsoft.com/fwlink/?LinkId=78453).