How to Update and Find Your Windows Experience Index Score
The Windows Experience Index is a simple, generic way to find out how your computer performs on a scale of 1.0 - 9.9, with 9.9 being the best possible score. WEI is much more useful for finding bottlenecks. A low score in specific categories points out where there's a performance problem. If you're wondering how your computer stacks up, then you'll want to run the Windows Experience Index or WEI.