Quick version of how to change your Office 2010 key There’s more info about what you might be missing in Office or Visio in this Microsoft support article and longwinded instructions about how to fix the issue and use a different product key. If you got your keys before 1st May they might not allow you to use all the features of the product as it seems there was some mix up with product keys for Terminal Services rather than full product ones.
So you got excited and installed Office Professional Plus 2010 or Visio 2010 using your Technet or MSDN subscription and product key? What if you want to change it later?
