HPC Pack 2008 R2 Service Pack 1

This is a pre-requisite to installing HPC Pack 2008 R2 Service Pack 2, which is available at http://www.microsoft.com/downloads/details.aspx?FamilyID=0fbdb867-c3ac-46c5-9311-98be0e461fc3

This service pack updates the HPC Pack 2008 R2 products listed in the 'System Requirements' section. It provides improved reliability as well as an enhanced feature set including:
Windows Azure integration - you can now add Azure nodes to your cluster!
Workstation Node idleness detection - you can now update Workstation Node availability templates to include user-activity and CPU-load thresholds.
Mark 'Critical' Tasks - you can now mark certain tasks as 'critical' and if they fail the entire job will be marked as 'failed.'

Note: This update does not support 'uninstallation.' Once installed attempting to remove it will completely remove the HPC Pack 2008 R2 software. We suggest initial testing be done on a non-production system, and that a system backup be performed prior to installing the service pack.

Windows 7, Windows HPC Server 2008 R2, Windows Server 2008, Windows Server 2008 R2, Windows Vista Service Pack 2, Windows XP Service Pack 3

An HPC Pack 2008 R2-based cluster including:
HPC Pack 2008 R2 Express, HPC Pack 2008 R2 Enterprise, Windows HCP Server 2008 R2 Suite, HPC Pack 2008 R2 Client Utilities, HPC Pack 2008 R2 MS-MPI Redistributable