I just want to know how 
Windows 7 Ultimate Key can I format my laptop 
Windows 7 Professional Key, so that the only 
Office Standard 2007 Key thing remaining is the 
Office 2007 Serial itself, as if I have just bought 
Office Pro Plus 2010. I don't have any Microsoft Office 2010 installation CD's, because 
Office 2010 Activation Key came with the laptop, so how can I do that?