if you have the ultimate msdn iso you can not use pro as a trial serial is not provided. u have to use ultimate Yes,I have Ultimate Iso,thank you very much I will try later with ultimate edition. @xpJohnson No,i have used just "Make Iso",all other boxes was unchecked. It seem that i must put in sig "Sorry for my bad english" EDIT:Thanks very much to all,now its working,finally