The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine

The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine

I'm trying to use the Creator data migration tool and get the error "The Microsoft.ACE.OLEDB.12.0 provider is not registered on the local machine" when I attempt to open any files. I found info telling me to install various Access Database Engine components which I've done, both 2007 and 2010. This had no effect on the problem. I have Office 2010 32-bit installed and Access works fine by itself. What can I do to get this thing working??