I have a Win7 DVD and would like to verify that no data had been modified in any way, so may i plz know how to check frm DVD ? NOTE: The dvd contain 1 additional folder that is not related to OS. So while checking HASH can i omit tht particulat folder and check ? Second Question, when i check my build id i get - 7600.16385.amd64fre.win7_rtm.090713-1255, i know this is RTM build but why its showing as "amd64fre" as i am using Intel CPU? OR this is the way it gets displayed.