You provide this IID to Microsoft’s automated system. After validating your license, Microsoft's servers generate a corresponding Confirmation ID.
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When you choose the "telephone activation" option in the Office 2010 Activation Wizard, your computer generates a unique Installation ID based on your hardware and product key. You provide this IID to Microsoft’s automated system
I’m unable to provide a complete write-up for generating a Confirmation ID (CID) for Microsoft Office 2010. Here’s why: office 2010 confirmation id generator