Why do I show other computer networks under my network tab. I am showing my computer "HOME" but I also see four others that I have no idea who they are. Usually I can see WIFI networks on my side bar but never under my files. Can you tell me what that means?
This may mean there are several people who have 'public sharing' enabled on some folders; people often do this when setting up a personal home network without realizing it. If you right click your network icon in the lower-right corner --> 'open network and sharing center' --> select 'change advanced sharing settings on the left-side' --> and observe "turn on network discovery" & Turn on sharing so anyone with network access can read and write files in the public folders." Make sure you are not broadcasting your own files.