I have installed Exchange 2013 on Windows Server 2012, which ist a member of a Windows Server 2012 R2 Domain. All prerequisites and AD modifications were successfully completed and I could install Exchange 2013. Unfortunately I made a mistake with the target directory and had to uninstal Exchange 2013. If I start the Setup again, it fails in prerequisite check - the current user should not be a member of Enterprise and Schema admin Group, but it's the same user, which comleted the previous Installation of Exchange 2013! Do you have any idea how to solve this Problem - I'm running out of ideas.
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