

If you have previously installed a pre-release version of Windows 7 and Windows Server 2008 R2 SP1 on your machine, you must uninstall that version before installing SP1.In order to download and install Windows 7 and Windows Server 2008 R2 SP1 you must currently have a Release to Manufacturing (RTM) version of Windows 7 or Windows Server 2008 R2 already installed.MUST READ : How to Transform Windows 7 to Windows 8 Metro Tablet style skin Steps to take before installing Windows 7 Service Pack 1 from the Microsoft Download Center: Windows 7 and Windows Server 2008 R2 SP1 helps keep your PCs and servers on the latest support level. The much awaited Windows 7 SP1 is now available for download.
