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An Exchange Information store worker process (Microsoft.Exchange.Store.Worker.exe) crashes when you try to export some mailboxes in a Microsoft Exchange Server 2013 environment. Additionally, the following messages are logged in the Application log:


To resolve this issue, install the following cumulative update:

2859928 Description of Cumulative Update 2 for Exchange Server 2013


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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