Is it that you are facing that the login only shows the last user that was logged in? If so, this is what you can do to fix it;
First do this Registry - Backup and Restore
In the start menu search box, type regedit and press enter, after opening regedit you will have to navigate to [HKEY_LOCAL_MACHINE \Software \Microsoft \Windows \CurrentVersion \Policies \System] DontDisplayLastUserName = 1
Change the 1 to a 0 and then close regedit
Log off, restart and that should resolve your issue.