Windows 7 Pro sp1 x64 using the hidden admin account (super admin) When I try to enable sharing of partitions (drives. not folders) I get this error. I tried it on different drive letters, but the same thing. I searched for this using the error message but no meaningful results came up. I'm using the "Workgroup" setting, not Homegroup. What services and/or components would be involved? I believe something is missing, though the list in "Service's" is what normally is running. What does the "154" refer to?