Turn on Automatic logon in Windows XP

In Microsoft Windows XP, We can automate the logon process by storing your password and other pertinent information in the registry database. This feature permits other users to start your computer and to use the account that you establish to automatically log on. We should not use this Windows feature if your are concerned about security because If you set a computer for automatic logon, anyone who can physically gain access to the computer can also gain access to everything that is on the computer and your password is stored in the registry in plain text.

You can use Registry Editor to add your log on information by the following steps :--
1.Click Start, click Run, type regedit, and then click OK.
2.Locate the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
3.Using your account name and password, double-click the DefaultUserName entry, type your user name, and then click OK.
4.Double-click the Default Password entry, type your password under the value data box, and then click OK.

If there is no DefaultPassword value, create the value then follow these steps :--
1.In Registry Editor, click Edit, click New, and then click String Value.
2.Type DefaultPassword as the value name, and then press ENTER.
3.Double-click the newly created key, and then type your password in the Value Data box.
4.Double-click the AutoAdminLogon entry, type 1 in the Value Data box, and then click OK.

If there is no AutoAdminLogon entry, create the entry then follow these steps :--
# In Registry Editor, click Edit, click New, and then click String Value.
# Type AutoAdminLogon as the value name, and then press ENTER.
# Double-click the newly created key, and then type 1 in the Value Data box.
5.Quit Registry Editor.
6.Click Start, click Restart, and then click OK.

You can also use turn on automatic logon without editing the registry in Microsoft Windows XP Home Edition and in Microsoft Windows XP Professional by the following steps :--
1. Click Start, and then click Run.
2. In the Open box, type control userpasswords2, and then click OK.
3. Clear the "Users must enter a user name and password to use this computer" check box, and then click Apply.
4. In the Automatically Log On window, type the password in the Password box, and then retype the password in the Confirm Password box.
5. Click OK to close the Automatically Log On window, and then click OK to close the User Accounts window.