Hi i tried installing 
 Office Professional 2007 Activation Key but i cant find my serial and every 
 Office Ultimate 2007 Keygen i boot up the computer it 
 Office Enterprise 2007 Serial Key straight to the setup screen. I have a windows 7 
 Microsoft Office 2007 Professional Product Key with a serial and i want 
 Microsoft Office 2007 Enterprise Serial Key install it but how can i get to the setup of windows 7?