How to
Create Hidden User Account (Hide User Account from Welcome Screen) in Windows
Windows operating system including
Windows7, Windows Vista and Windows XP allows multiple user
accounts to be created on the computer, be it administrators or standard users.
When there is more than one user accounts been defined and created on the PC,
Windows will display Welcome Screen, with all available user accounts listed so
that user can click and login.
However, showing and displaying of user
accounts on the Welcome Screen is probably a weakness in the security point of
view, more so if the user account is intended to be a hidden or backup user
account. In fact, there is trick to make user account or administrator account
that normally been listed on the Welcome Screen to be hidden from view.
In order to hide a user account (which
also means create a hidden user account) in Windows XP, Vista, or Windows
7, just go to Control Panel User module and create an additional user
as usually do (Control Panel -> User Accounts and Family Safety -> User
Accounts in Windows 7 and Windows Vista). If you already have an existing user
that wants to be made hidden, invisible or disappeared from Welcome Screen,
then go straight to guide below.
 
1. Run Registry Editor (RegEdit.exe).
2. Navigate to the 
following registry key:
     | 
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows          NT\CurrentVersion\Winlogon        \SpecialAccounts\UserList | 
 
Note: If SpecialAccounts and UserList is not found, create new sub-key and  name them accordingly.
3. Select UserList, and in the right pane, right click any blank space, and  point to New -> DWORD (32-bit) Value.
4. Name the new DWORD registry value  name as the exact same name that match the name of the user account to be  hidden.
For example, if the user ID of the user account is John, the name  the registry value as John.
5. Double click on DWORD registry value, and set  the value data to 0 in oder to hide the account from Welcome  Screen.
Tip: To  display the user account on Welcome Screen again so that it's visible again,  delete the
registry entry, or set the value data to 1.
6. Exit  Registry Editor.
7. Log off or restart computer to make the change  effective.
 
Tip: In order to login into Windows using an user account that has  made hidden and invisible, just press Ctrl+Alt+Del to bring up Windows Logon  dialog, and then type in the user name and password  manually.