This is a simple translation of my previous article. Sorry for my English.
This was my score before I began modifying my score:
(Laptop PC 
)
This is how you easy can change your Windows Experience Index score in Vista:
- Open the following folder: %windir%\Performance\WinSAT\DataStore\.
- Then edit the newest XML-file in this folder. I recommend you to use XML Notepad 2007, or just use Wordpad.
- Now you can modify your scores, by changing the following values in the XML-file:
You can only use values between 1.0 and 9.9. - When you are satisfied with your new score, just save it as a XML-file somewhere on your computer.
- Copy/move this file to the folder, by overwriting the old file.
- Questions? Feel free to leave a comment.
My new scores: 
TIP 1: Don’t make your base score higher than the lowest subscore. “Base score: Determined by lowest subscore.�
Example:
TIP 2: You can get back your old WEI score, by updating your score.
Shortcut to the control:
%systemroot%\system32\control.exe /name Microsoft.PerformanceInformationAndTools
Important: I don’t recommend you to upload your modified score to Share Your Score.
- Peter Sandberg Brun
WTF do you need to change the scores for?
Just for fun.
I found that months ago playing with the RC2 builds and digging around the Windows folder.
There actually is a benefit to changing the score – don’t fool yourself. If your score is below a 3.0, you can’t have themes for the Photo screensaver. I don’t know of any more benefits, but this is just one example of what changing the score can do.
I reported this on my website http://www.winvistainfo.org as well as in the MS Windows Vista newsgroup back in early November. Only difference is that I cranked my score up to a 32.7. Cool stuff, ain’t it?
-Robert Firth
http://www.winvistainfo.org