What can I do to improve my disk data transfer rate on my primary hard drive? I am running windows 7 and recently replaced my hard drive and my Windows Experience Index score is now only 5.9 which is the score for the hdd. Everything else has a fairly high score: processor 7.5, ram 7.5, graphics 7.4, and gaming graphics 7.4. Should I have got a different hdd? Any help would be welcome. Thanks