[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Curr entVersion\policies\system]

After installing 10.1.3 through system update to my client machines (XP SP2 with Novell Client 4.91 SP4) I found that the 2 settings above had been set as above (ie username gets blanked, and no shutdown button on NW client login screen).

Only reason I spotted it is because its the opposite of what we use on our client machines.