hi friends.... i have a hp envy dv6 (i7) laptop i got windows 8 single language edition pre installed with this lapy.. i changed my windows to windows 8 pro, i got problem when installing windows 8 pro because windows 8 single language key was installed in bios so i used PID.txt to intall windows 8 pro.... now i want to know what product key is install in my bios... is there any way that i know what product key in my lapotop's bios.... i know there are many sortware that check installed windows product key but my windows is install with different product key not my bios key... any software that scan bios for key or something like that