salam..sy x phm kenapa Window Experience Index sy x naik rating lepas sy tambah 4gb RAM especially pd Memory (RAM)..skg RAM sy da 8gb tp still dgn score 5.5 je..ape masalah sbnarnye?? lappy pon slalu lembap,nak maen sketchup pon still hang kkdg 2..umm..plizz master2 sume..i need ur help..