Hmm. Are you sure about that
As soon as you mentioned "hidden, locked partition", it made me wonder.
Is that partition there to enable you to return the system to factory state if you ever needed to? For example, if the Operating System became so corrupt it was unrepairable, then you use that partition to set the system back to when you brought it.
If so, then I am guessing that the partition only holds the recovery data for Office 2010 Starter edition.
It would be pointless otherwise as the data on that partition cannot be accessed except during a "reset to factory condition".