That's the only file.
However, there could be several copies of it.
I had two.
One in C:\Windows\system32\en-US
and another in C:\Windows\winsxs\x86_microsoft-windows-a..on-authui.resources_31bf3856ad364e35_6.1.7600.16385_en-us_8b52ed91fe5d105f
So, turn hidden files and folders option on as well as show system folders and search for other copies of authui.dll.mui in your windows folder.
I have solved the problem. I have found it's because there's no service pack installed and needed to turn off a Windows Feature. The solution was found at Welcome Log On Text Message - Change
Slightly different question, please see my Orb Menu below.
By going through gpedit.msc & enabling 'Remove Lock Computer', 'Remove Task Manager' & 'Remove Logoff'; these are taken off the Ctrl+Alt+Del menu.
Problem is off my Orb Menu; the selection 'Lock' does not work anymore, 'Log off' still works fine & if I enable 'Hide entry points for Fast User Switching' (Local Computer Policy>Computer Configuration>Administrative Templates>System>Logon), Switch User gets grayed out. Also, if 'Remove Task Manager' is enabled, I can't get into it at all - no Ctrl+Shift+Esc/even going directly to C:\Windows\System32\Taskmgr.exe.
Is there a way to take these options off the Ctrl+Alt+Del menu ONLY w/o disabling the others?
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