I have a home network with 7 or 8 XP machines. All are on the same workgroup. All share EVERYTHING. All have passwords. All are logged in with an ADMINISTRATOR account. All can see each other on the network. They all talk to each other just fine. All the GUEST accounts are turned ON. I loaded Windows 7 on a machine, and turned on sharing for drive C: I gave everyone ALL permissions. I also went into the Network and Sharing Center. I had no idea what a "HomeGroup" was, so I went a few more menus deep and found the Workgroup setting. I set that up with the name of my workgroup. From the Windows 7 machine, I can see all the XP machines on the network, and they can see the Windows 7 machine. But when I try to view anything (drive C:\ , for example), I get the "you might not have permission to view this network resource....". I get the same thing when I try to log on to the Windows 7 machine from the XP machines. Since I can't log on to my XP machines, I also can't connect to, and use the printers attached to them. I basically want a big, open, flat network. No security at all between machines. What do I need to do?