Volume license version of Microsoft Office 2010 may not prompt for a product key during installation. These products do however require to be activated within a grace period, normally 25 days.
Office 2010 Volume license editions can be activated either using a KMS server, with an Office 2010 KMS key installed into the activation server, or by using a MAK key. This article covers MAK key installation which is more suited for small to medium sized organisations.
How to use the MAK key
Note: KMS Activation will be covered by a seperate article.