Vista has rather an illogical performance rating tool. It tests some of your computer subsystems and gives you a total score that can give you an indication whether or not your machine is fit for Vista. It gives you a "score" called Windows Experience Index (WEI). If we were on the planet Vulcan someone would be shot for this performance rating system as Microsoft will super confuse people with it.
Read the complete story here. (The Inquirer)
