Just like previous versions of Windows, Windows 8 also rates your system on a scale from 1.0 to 9.9. Note that the scale has changed from Windows 7. Before it used to be from 1 to 7.9. The score is broken down into several categories including Processor, Memory, Graphics, Gaming graphics, and Primary hard disk.
Here’s an example of what the Windows Experience Index looks like in Windows 8:

Your score is based on the lowest sub-score, in my case reducing my score to a sad 2.0. Of course, this is Windows 8 running in a virtual machine. Anyway, there may be times when you want to refresh the score like when you add memory, replace the hard drive or upgrade the graphics card.
In this article, I’ll show you how to refresh the experience index in Windows 8. To get started, open the Control Panel in Windows 8 and click on System.

You’ll see the score and a link to get further details about the Experience Index score. Click on the link.

On the following screen, you’ll see the breakdown of the score. At the bottom, you can click on Re-run the assessment.

A dialog box will pop up that shows you the progress of the test and the name of the current test.

It’ll take a few minutes and then you’ll get the new score. For example, I changed the graphics card to use in the virtual machine and my score went up. Yay!

So that’s about it for the Windows Experience Index in Windows 8. What’s your score? Share it with us in the comments. Enjoy!