I'm running a copy of Windows 7 as a "server" at my home. I have several file shares that I want to make available to specific users only.

I've modified the NTFS permissions to only allow these users to access their respective shares.

However, while a locally logged on user can access the actual folders just fine, over the network the remote access is authenticating as HomeGroupUser$ rather than the actual user in question, as shown by the Computer Management panel for shares. I do have matching user accounts (i.e. my username locally is abc and a parallel account with username abc and the same password exists on the server machine).

I don't want to disable homegroup because there are other shares where homegroup authentication would be desirable, especially for some people where they don't have a parallel account.

Is there a way to get the system to authenticate first by matching username, and then by homegroup authentication if there's no matching user?