I really have to smile at this one - when I first installed Win 7, I spent a lot of time figuring out how to get rid of Homegroup and Libraries on my desktop. It is an easy Registry line. Every so often, a Windows update puts it back in, but it has now become a simple RegEdit fix followed by the F5 key.
I prefer to use my regular LAN that has existed for several years, and links all 4 of my computers. Yeah - I had to follow the same RegEdit procedure for 8.0 and 8.1 as well.
Logically, if you want Homegroup, perhaps you can check the Registry line specified by MS?
http://social.technet.microsoft.com...e-home-group-and-libraries-icons-from-desktop