关于Win7的体验指数

原帖地址：http://blogs.technet.com/mniehaus/archive/2009/08/26/prepopulating-windows-experience-index-wei-a-k-a-winsat-numbers-in-windows-7.aspx

In Windows Vista, the first time the operating system booted up it would run through a series of performance tests to calculate the machine’s Windows Experience Index score, and it would use these numbers to determine what operating system features such as Windows Aero should be enabled.  This process could take a while.

在Vista中，第一次运行操作系统时，会执行一系列的运算测试，计算机器的体验指数，并以此决定是否打开一些功能比如Aero。这个过程会花上一段时间。

Fortunately, Windows 7 improves this: the initial boot-up still runs the video performance test to determine whether to enable Aero, but the rest of the tests are deferred and will run in the background at a later time.

幸运的是，Win7改进了这个过程：当第一次运行时仍然对显卡性能进行测试，决定是否打开Aero，但对于原本vista中的其他测试则推后在后台执行

But for those of you who are deploying identical hardware (e.g. thousands of new laptops, all with the same specs), you might want to optimize this even more.  With Windows Vista, I mentioned in http://blogs.technet.com/mniehaus/archive/2008/11/06/want-to-save-some-time-when-deploying-windows-vista.aspx that there was a process to do this involving a hotfix that added some additional unattend.xml parameters.  I started to write a much longer blog article explaining the detailed implementation steps, but never got around to verifying that the instructions worked �C the process really was rather cumbersome.

但对于那些部署统一的硬件的人，可能想到要更加的优化这个过程。在Vista里，我层级提及一个hotfix可以往Unattend.xml里添加参数。我曾试图写一篇较长的blog去解释这些细节的部署步骤，不过从来没有完成，因为这么做实在太麻烦了

Fortunately with Windows 7 the process is much easier.  See the Windows AIK documentation at http://technet.microsoft.com/en-us/library/dd744241(WS.10).aspx for all the details.  To add this into your reference computer image creation task sequence (using MDT 2010 Lite Touch or ConfigMgr 2007 SP2), you just need to add one additional command after Windows 7 is installed and before the step that runs Sysprep.  This step needs to have the following command line:

WinSAT.exe -prepop

That’s all you need.  As the Windows AIK documentation explains, this will create a set of WinSAT XML files containing the performance details, and Sysprep won’t remove them.  When the image is deployed, WinSAT will verify that the hardware is truly the same and ignore the XML files if there are changes.

幸运的是，Win7里一切都变得简单多了。WAIK里有所有的实施细节。你只需要在TS里，在win7安装之后、在执行sysprep前添加一步命令即可实现
WinSAT.exe -prepop
这就是你所需要做的，WAIK文档里的解释，这个命令会创建一套的WinSAT的XML文件，而且sysprep不会移除他们。当镜像部署后，winSAT会检查到硬件是完全相同的并忽略XML文件里的改变