Hide User Accounts at Welcome Screen on WIndows XP

It done to hide specific user account on welcome screen. Before start hide an user account in welcome screen, you should backup the registry first. To hide specific user account, you need to insert value on registry key under this line,

HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\Winlogon\SpecialAccounts\UserList

If you have open this key, create new DWORD value matches the users name exactly. To show or hide user, insert this value on decimal.

0 – To hide user account
1 – To show the user account

Restart your computer to see the change.
If your computer get eror after restart, use the safe mode to restore it. Safe mode also can you use to modify the regisrty.