..Whats your opinion?

<-- Complete n00b to the ethical hacking community and I've been on a windows computer all my life.  I'm in IT and I want to be more learned on security and everything that is involved.

So far I know that you need 

-->

Basic/Advanced Linux Knowledge



Add to my list!

I assume that you are asking to hide users in the welcome screen.

To do this, go to this key in regedit
HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\Winlogon\SpecialAccounts\UserList

Under this key create a new DWORD value with the name of the user, say Jimmy, and then put decimal value acc to following-
0 - Hides the user from the welcome screen
1 - Show the user in the welcome screen

How to log into the user that is not shown in the welcome screen?
Press ctrl+alt+del twice and then login with the appropriate usename and password.

This trick works only in XP professional.

Another simpler approach is this,
Log in as an administrator and go to Control Panel > Administrator Tools > Computer Management > Users. Now selct the user you want and under the options use the check box to hide or display the account.

But the best option is this,
don't use welcome screen.