Assume that you try to add lots of management role assignments in a Microsoft Exchange Server 2010 environment. In this situation, the Exchange Management Console (EMC) takes a long time to open.
To resolve this issue, install the following update rollup:
2579150 Description of Update Rollup 4 for Exchange Server 2010 Service Pack 1
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about management role assignments, visit the following Microsoft website: