When you upgrade the Virtual Machine Manager (VMM) server to VMM 2008 R2, it is recommended that you also update the agents on all managed computers (library servers and virtual machine hosts) as soon as possible. You do not have to update all of your agents at once, because the agents with the previous version of VMM still maintain basic functionality for the managed computers. However, to benefit from the new functionality of the agents in VMM 2008 R2, you must update the agents.

Note
You cannot use the Update Agent action to update an agent of a host that is on a perimeter network. You must uninstall the existing agent, and then install the new version of the VMM agent. For information about uninstalling and installing agents, see New Installation of VMM 2008 (http://go.microsoft.com/fwlink/?LinkID=117338).

1. In the VMM Administrator Console, in the Managed Computers node of Administration view, select the managed computers on which you want to update the agent.

2. In the Actions pane, click Update Agent.

   Note
   The Update Agent action is enabled only when the version of the agent on a managed computer is older than the version of the VMM server.

3. In the Update Agent dialog box, type the credentials of a domain account with administrator privileges on the selected managed computers.

   Note
   The credentials cannot be for the same domain account that is used as the VMM service account. For more information, see Hardening Virtual Machine Hosts (http://go.microsoft.com/fwlink/?LinkID=145057).

See Also