Hi, i'm trying to install windows xp pro x64 but i can't get pass the product key verification every win xp x64 pro key i tried don't neither do x32 win xp keys work, but thats expected. The error just says: "The CD key you entered is not valid.". What do i do? Also i thought it was supposed to be a product key not a CD key? what even is a cd key? Is it the product key on the case or a pkey that comes with a cd install? Problem js i don't have a cd as i used a iso, and i can't skip it there is no option and just leaving it blank and clicking next gives me the same error.