The logged-on user is not a member of the local Administrators group
[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: 2006-06-06
Microsoft® Exchange Server 2007 setup cannot continue because the logged-on user is not a member of the local computer's administrators group.
Exchange 2007 setup requires that the logged-on user who installs Microsoft Exchange has full access to the local computer.
To resolve this issue, log on to the computer by using an account that has local administrator access and then rerun Microsoft Exchange setup.