Configure Windows XP to Automatically Login

Method 1

Click Start, Run and type CONTROL USERPASSWORDS2, and click Ok. Select the user account from the list (the account to which you want to automatically logon). Uncheck Users must enter a user name and password to use this computer option, and click Ok. Type the user account password and complete the process.

For Windows XP Home, don't try to auto-login as the built-in Administrator, as you'll receive an error message.

Method 2: Using TweakUI

Open TweakUI (Click Start, Programs, Powertoys for Windows XP). Expand the Logon branch, and click Autologon. Turn on the "Log on automatically at......" option, type your username and password, and click Ok.