With the release of official Windows 7 SP1 and Windows Server 2008 R2 SP1, the documentation and guides for both Windows 7 SP1 and Windows Server 2008 R2 SP1 have been released and published by Microsoft for general public as free downloads.

All documentations for Windows 7 and Windows Server 2008 R2 Service Pack 1 can be found at Microsoft Download Center. The following guides and documents are available (click on the file name for direct download link):

All documents are free downloads.