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Windows 7 SP1 has already begun a public test, which includes the release of RTM version available through Windows Update feature updates and some improvements. In the provision of beta, Microsoft also Download Center provides Windows 7/Server 2008 R2 SP1 update the document. Microsoft officially released the update before the leaked documents and Windows 7 SP1 Build 7601.16556 v.172 content of the document attached to the same, different, in Windows 7/Server 2008 R2 SP1 list of common enhancements, Microsoft said the new SP1 Beta additional instructions on the support of advanced vector extensions.

“Supporting advanced vector extensions (Advanced Vector Extensions, AVX)

People for the growing demand for computing power, as usage patterns change, the processor instruction set architectures are evolving to meet this growing demand. Advanced vector extensions (AVX) is a 256-bit processor instruction set extensions, AVX is to achieve floating-point intensive applications designed to improve performance, support for AVX is part of SP1, can help applications take full advantage of the new instruction set and register extensions. ”

In addition, Windows 7 SP1 again review the major improvements:

- Support for third-party alliance and communication between services

Windows 7 SP1 to effectively implement identity federation service with third-party communication (ie, those that support WS-Federation Passive Configuration Protocol service), which enhances collaborative platform to improve the capacity of different organizations of information authentication and authorization capabilities.

- HDMI audio equipment performance improvement

Reflect a small part of the user, a computer running Windows 7 and the HDMI connection problem between the audio device, when the system reboot will be disconnected after the two. SP1 solved the problem on to ensure that Windows 7 PC and the continuing interchange between HDMI equipment.

- To correct the direction of XPS documents print Mixed errors from time to time

Before the SP1 release, some users reported using the XPS Viewer to print XPS documents inconsistent direction (that is, pages of the document, including vertical and horizontal page) will have problems, or all pages to be printed into a horizontal, or they were all printed vertically. SP1 solved the problem, users can now print correctly using the XPS Viewer to print out the directions of the document was mixed.

Windows 7/Server 2008 R2 SP1 common improvements:

- Change the “landing Restore previous folder window” feature

This feature is in Windows Explorer Folder Options dialog. Prior to the previous folder window according to a recent event the location of the folder to restore, SP1 will change the function to restore all folders to their prior position.

- Enhanced RRAS Authentication and IPsec support in more
 
In the IKEv2 authentication protocol as the region added more capacity on the type of support, so that when the implementation of IKEv2 authentication protocol can use more types of identification, such as E-mail ID, Certificate Subject.