The command failed because it was attempting to start a nonexistent service.

The default Administrator account is visible and can be managed as part of normal Windows 7 operations via Computer Management, Local Users and Groups. It has the same privileges as any other account in the Administrators group. After installing the OS the next thing I do is disable the Administrator account and Guest account. I am discussing a non-domain environment. In a Windows domain things get more complicated because there are separate local and domain sets of users, groups and privileges interacting with each other.