You can change the Windows NT logon process in either of the following two ways:
During Windows NT logon, the first message that appears instructs the user to press CTRL+ALT+DELETE to log on. Then, when the Welcome dialog box appears, the user can type a user name, domain, and password.
You can define a custom message to display after the user presses CTRL+ALT+DELETE. For example, you can warn users that a particular computer is restricted to only certain users. Or, for all computers on the network, you can warn against unauthorized attempts to log on.
1. In Registry Editor, select the following subkey:
HKEY_LOCAL_MACHINE\Software
\Microsoft
\Windows NT
\CurrentVersion
\Winlogon
2. Add a value entry named LegalNoticeCaption of type REG_SZ, and type text that will be the caption for the message.
3. Add a value entry named LegalNoticeText of type REG_SZ, and type text for the message.
If either LegalNoticeCaption or LegalNoticeText is defined in the Registry, a user cannot log on to the computer without acknowledging the message by clicking OK.
For a computer used as a print server and another special-use system, you might enable system startup without a user having to supply a user name or password. You can define automatic logon for a computer by adding some value entries in the Registry.
1. In Registry Editor, select the following subkey:
HKEY_LOCAL_MACHINE\Software
\Microsoft
\Windows NT
\CurrentVersion
\Winlogon
2. Add a value entry named AutoAdminLogon of type REG_SZ, and specify a value of 1.
3. Add a value entry named DefaultPassword of type REG_SZ, and enter the password of the user who is listed under the value DefaultUserName.