Open Regedit and scroll to this Reg Key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows
NT\CurrentVersion\Winlogon\SpecialAccounts\UserList
Add the username you wish to hide as a DWORD value. Set the value to 0
(zero)
That user will not show on the Welcome screen to log on to that account pres
'Alt+Ctrl+Del' twice and type the user name and password.
Hope this Helps
Simon.