Exchange 2010 SP3 failed in the Organization Preparation steps ?

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    albertwt
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    #164687

    Hi All,

    I need your experts advice in how to resolve the problem in installing the SP3.

    I’m executing the Setup.COM /PrepareAD command from my Schema Master DC with the elevated command prompt under my user account (which is a member of Enterprise, Domain and Schema admin group).

    Somehow the installation always end up in Organization Preparation FAILED step.

    the following error message is the detailed error when I look through the ExchangeSetup.log file:

    Quote:
    [ERROR] Active Directory operation failed on. The object ‘OU=Microsoft Exchange Security Groups’ already exists.
    [ERROR] The object exists.
    [ERROR-REFERENCE] Id=443949901

    Any kind of help and suggestion to help me get through this error would be greatly appreciated.

    Thanks.

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