For more information on how to run Windows Update, see How to get an update through Windows Update. This update is provided as an Important update on Windows Update. For more information, see Add language packs to Windows. Therefore, we recommend that you install any language packs that you need before you install this update. Important If you install a language pack after you install this update, you must reinstall this update. This update is incompatible with Windows Server Update Services (WSUS) servers without the hardening update 2938066.
This article describes an update that contains some improvements to Windows Update Client in Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 SP1. Windows Server 2008 R2 Service Pack 1 Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Standard Windows Server 2008 R2 Foundation Windows Server 2008 R2 for Itanium-Based Systems Windows 7 Service Pack 1 Windows 7 Ultimate Windows 7 Enterprise Windows 7 Professional Windows 7 Home Premium Windows 7 Home Basic Windows 7 Starter Windows Embedded Standard 7 Service Pack 1 Windows Embedded Standard 7 More.