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Enterprise Hotfix Rollup for Windows 7 SP1 and Windows Server 2008 R2 SP1 Available Now

An enterprise hotfix rollup for Windows 7 SP1 and Windows Server 2008 R2 SP1 has been released which contains 90 hotfixes released after the release of Service Pack 1. These hotfixes improve the overall performance and system reliability of Windows 7 SP1-based and Windows Server 2008 R2 SP1-based computers. We recommend customers to apply this hotfix rollup as part of their regular maintenance routine and build processes for Windows 7 and Windows Server 2008 R2 computers.

This hotfix rollup includes the following improvements:

  • Improves the Windows Client Remote File System components.
  • Improves the SMB Service and TCP protocol components.
  • Improves the processing of Group Policies and Group Policy preferences.
  • Improves the Windows Management Instrumentation (WMI) components to reduce the CPU usage and to improve the repository verification performance.

To view the list of hotfixes included in this hotfix rollup, please visit

How to get the Hotfix Rollup

This update is available from the Microsoft Update Catalog. Type 2775511 in the search field that is located in the upper-right corner of the catalog webpage.