Remove a Role from a User or USG
Applies to: Exchange Server 2010
Management role assignments assign a management role to a user or universal security group (USG). If you remove a role assignment, the users assigned the role will no longer have access to the cmdlets available on that role. For more information about management role assignments in Microsoft Exchange Server 2010, see Understanding Management Role Assignments.
You must use the Shell to remove role assignments.
Remove a management role assignment
You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "Role assignments" entry in the Role Management Permissions topics.
To remove a role assignment, use the following syntax:
Remove-ManagementRoleAssignment <assignment name>
For example, to remove the "Tier 2 Help Desk Assignment" role assignment, use the following command:
Remove-ManagementRoleAssignment "Tier 2 Help Desk Assignment"