For some reason this is not enabled by default for the Administrator user. To enable it: sidebar at left, Permissions Admin roles double-click organization management Under "Roles:", click + Choose "Reset Password" from the list Add OK If you get "You don't have access to create, change, or remove the "Reset Password-Organization Management" management role assignment. You must be assigned a delegating role assignment to the management role or its parent in the hierarchy without a scope restriction.": Run these commands in exchange management shell: [PS] C:\Windows\system32> Add-pssnapin microsoft* [PS] C:\Windows\system32> Install-CannedRbacRoles [PS] C:\Windows\system32> Install-CannedRbacRoleAssignments then log off ECP and and back on, and retry.