For Windows vista and windows 7. will make your windows go genuine with the ability to update(must not install update that will check if windows has been tempered with) if you have install that update don\'t worry just use the loader again to activate your windows. this is a 1000% working loader , has been using this on 5 installation with update with no problem.
1. In certificate enter your pc manufacturer.
2. in required product key choose your pc brand name.
3.DO NOT CHANGE ACTIVATION MODE UNLESS YOU KNOW WHAT YOU ARE DOING.
4.leave OPTION on DEFAULT
IF YOU HAVE ANY QUESTION FEEL FREE TO ASK.
THIS IS MY FIRST TORERNT. RATE AND COMMENT :) .