The HQ administrator can control the upgrade activity using Upgrade Statistics.
| • | Select the Collaboration Services node in the management tree to view information about the Collaboration Services version, license, upgrades, and current general settings during the upgrade in the right pane. | 
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This section provides checklists that will help you install Collaboration Services.
| • | Check account permissions Ensure that all accounts have the permissions defined in the Service account rights and permissions or Service account minimum rights and permissions . You will not be able to install and use Collaboration Services successfully if the accounts do not have the required permissions. |