Hi, I have a problem becouse I have a legal serial number licence off Windows 7 Home Premium but I haven´t the appropiate dvd for installation. The problem is that I can install the fresh option for my operating system, but then there aren´t driver for my printer multifunction. For this I have to install first windows vista 64 bits Home premium, but after I can´t do the update to Windows 7 with the Cd I have. I found versions an english but don´t work for my system. I have Windows Vista Home Premium 64 bits OEM. I need a dvd for update to Windows 7 Home Premium 64 bits too for my serial number. I don´t know if I need OEM or Retail (I think OEM). Can you help me? Sorry for my poor english, is very difficult for me. Regards, Javier