@ China4Ever Hi China4ever, I have a couple of questions for you please, I have a Gigabyte P35C-DS3R rev 2.0 I notice you have modded recently a F9 version of the bios for dattad I do not have vista installed yet as im still building the pc. I have a copy of dell oem vista ultimate which i have edited and wish to ask you if what i have done is correct: I have changed the certificate located Sources/$OEM$/$$/SYSTEM32/OEM/ to the ASUS.XRM-MS cert i found on this forum I have also changed the Sources/PID to asus vista ultimate key also found on this forum A file located Sources/$OEM$/$$/DELL_VERSION i have renamed this ASUS_VERSION Can you please tell me if this is everything i need to do to the image please? will this install ok? If that is ok do i just use the moded bios you provided in earlier post after installing my edited image of vista? then everything will be activated? or am i missing something? Your help is much appreciated Regards KY