I am moving into a house with tenants. We have to share our internet connection with them. I am also building a home network for sharing files, printers and streaming content. I do not want them to see my files or contents. Is there any way I can share the internet connection with them but my files stays with my computers. I have a desktop which will will be the main server with windows 7 and 2 laptops also Windows 7. I am not sure about there computers. The ISP gives only a modem if that helps.