This release was created for you, eager to use Microsoft Office 2011 MAC full and with without limitations.
According to this document, the product key was mailed to you in a mail.
The whole activation procedure is described in Office for Mac 2011 Activation and Product key Information (via ). Office 2011 requires activation and is tied to your hardware so it might very well be that you need to reactivate Office 2011 after the HD change. According to this document, the product key was mailed to you in a mail with subject 'Microsoft Office for Mac – Order Confirmation'. Microsoft Office 2011 Mac Product Key Code Free.
