Primary Site In Multisite Network

I would like to know how to disable buddypress for the primary site, but leave it active for all of the network site. I would like to have example.com used for only a blog signup and feature site. While example.com/site1...example.com/siteN, serve as buddypress sites within the network.

Currently, example.com has the links for buddypress features (groups, forums, etc.) and the registration page is pointing to the buddypress registration and not the blog signup (using edublogs theme).