Hi nova-tek, I suggest that you download Microsoft Office 2013 software from the link given below and then activate the software using the product key you have. [URL]  
Hello, I have a new Dell Vostro that came with a key for Office Home and Business 2013. However, Office 2010 has been preinstalled on this machine. Is there a way to download the proper version of H & B 2013?  Thanks
Recieved Office 2013 key, Office 2010 installed on computer