When you click the Agents tab in the Management task area, agent status is automatically updated. If you are aware of recent protected computer activity that could affect protection agent status, such as restart of a computer after installation of a protection agent or local uninstallation of a protection agent, you can manually update the status of agents to display the latest information.
To update agent status
On DPM Administrator Console, click Management on the navigation bar.
In the Actions pane, click Refresh information.
The current agent status, available updates, and agent version are displayed.
To check agent update status
In Control Panel on the protected computer, click Add or Remove Programs.
In Change or Remove Programs, click Microsoft System Center Data Protection Manager 2007 Protection Agent.
Scroll to the protection agent entry. If Show Updates is checked, the agent is listed as an update.