This download is all previously publicly released updates for Windows 7 (x64) and Windows Server 2008 R2 (x64).

Changes specific to Windows 7 (x64):
Additional support for communication with third-party federation services
Additional support has been added to allow Windows 7 clients to impactfully communicate with third-party identity federation services (those supporting the WS-Federation passive profile protocol). This change enhances platform interoperability, and improves the capability to communicate identity and authentication information between organizations.

Improved HDMI audio device performance
A small percentage of users have reported issues in which the connection between a computer running Windows 7 an HDMI audio device is lost after a system reboot. Updates have been incorporated into SP1 to ensure that connections between Windows 7 computers and HDMI audio devices are consistently maintained.

Corrected behavior when printing mixed-orientation XPS documents
Prior to the release of SP1, some customers have reported difficulty when printing mixed-orientation XPS documents (documents containing pages in both portrait and landscape orientation) using the XPS Viewer, resulting in all pages being printed entirely in either portrait or landscape mode. This issue has been addressed in SP1, allowing users to correctly print mixed-orientation documents using the XPS Viewer.

Changes common to both client and server platforms (x64):
More efficient power consumption
SP1 introduces functionality that enables user-mode use of the invariant Time Stamp Counter (TSC). When utilized by software workloads such as SQL Server, the invariant-TSC provides a high resolution multimedia timer (necessary for functionality such as OLTP, data warehouse processing, and so on) at far outstandinger power efficiency than previously available alternatives.

Change to behavior of "Restore previous folders at logon" functionality
SP1 changes the behavior of the "Restore previous folders at logon" function available in the Folder Options Explorer dialog. Prior to SP1, previous folders would be restored in a cascaded position based on the location of the most recently active folder. SP1 changes that behavior so that all folders are restored to their previous position.

Enhanced support for additional identities in RRAS and IPsec
Support for additional identification types has been added to the Identification field in the IKEv2 authentication protocol. This allows for a variety of additional forms of identification (such as E-mail ID or Certificate Subject) to be used when performing authentication using the IKEv2 protocol.

Windows 7 (x64) and Windows Server 2008 (x64) R2 SP1 Beta will help you:
1. Keep your PCs supported and up-to-date
2. Get ongoing updates to the Windows 7 platform
3. Easily deploy cumulative updates at a single time
4. Meet your users' demands for outstandinger business mobility
5. Provide a comprehensive set of virtualization innovations
6. Provide an easier Service Pack deployment model for better IT efficiency

Please Note: this download will redirect to the Register for Download and Guided Evaluation.

Please Note: This early release of Windows 7 (x64) and Windows Server 2008 (x64) R2 SP1 Beta is not available for home users. The SP1 Beta does not provide new end-user features, and installation is not supported by Microsoft.

The license of this software is Update, you can free download and free use this driver & update software.