Found a great tool where you can hide user accounts from being displayed in Windows XP Welcome screen.
Hide user accounts from Welcome Screen
This is very useful if you’re sharing your computer and you don’t want people to know that you have a login account of your own. Although it’s easy to find out the list of user accounts after login, but it’s still a good way to avoid other people trying to get into it while they are on your computer.

IntelliAdmin has developed a free tool called XP User Hide where you only need to check the user that you want to hide from Welcome Screen. It’s that EASY! XP User Hide only modifies values from your Registry and not patching or modifying any Windows files. So it’s definately safe to use and won’t make your Windows unstable.
IntelliAdmin XP User Hide

Here’s the big question. How do you log on as a hidden user? If you are running windows XP Professional you simply need to press CTRL-ALT-DEL twice, and the standard logon screen will be displayed. This has one pitfall – it will fail to work if a user is still currently logged in. If you are having trouble getting it to show, then reboot and press it twice before any users have logged in. Secondly, if you are running Windows XP Home, you will need to boot in safe mode to use the hidden account. The CTRL-ALT-DEL trick does not work for XP Home.

NOTE: Before you start using this tool, I want to warn you. This free tool is particularly dangerous. If you make the wrong move, you could make it nearly impossible to get back into your system. Don’t blame me if you’ve no accounts to login!

[ Download XP User Hide ]

[tags]tips, tricks, Windows, Microsoft, User, Accounts, Welcome Screen, intelliadmin[/tags]