Microsoft has released an update for SCVMM 2008 R2. More details on: http://support.microsoft.com/kb/978560

How to obtain the System Center Virtual Machine Manager 2008 R2 hotfix rollup package:

Option 1:         This update is available on Microsoft Update.

To obtain the update from Microsoft Update, follow these steps on the Virtual Machine Manager Server:

1. Click Start, and then select Control Panel.
2. In Control Panel, double-click Windows Update.
3. In the Windows Update window, click Check Online for updates from Microsoft Update.
4. Click the important updates are available hyper-link.
5. Select the Update for System Center Virtual Machine Manager 2008 R2 (KB978560), and then click OK.
6. Click Install updates to install the VMM hotfix rollup package.

Note A restart is required if the Virtual Machine Manager service or the Virtual Machine Manager Agent service is running when the rollup is installed on the Virtual Machine Manager server.

Updating the VMM agent on the Hyper-V and Virtual Server hosts

This update requires updating the VMM agent on the Hyper-V and Virtual Server hosts. The hosts will have a status of Needs Attention if the agent has not been updated.

To update the VMM agent on multiple hosts, follow these steps:

1. Open the Virtual Machine Manager console.
2. Click Administration, and then click Managed Computers.
3. Select the hosts, and then click Update Agent.
4. Enter your credentials, and then click OK.

Option 2:         Manual download

To manually download the hotfix rollup from the Microsoft Update Catalog, visit the following Microsoft Web site:

http://catalog.update.microsoft.com/v7/site/Search.aspx?q=978560