TIP: How Windows XP: automatic logon

Well, it's not a question, it's only a tip that was useful for me when a power failure occured. It may be useful for others too.

I copy from Microsoft's site:

How to turn on automatic logon in Windows XP

A. When joined to a domain:

You can use Registry Editor to add your log on information. To do this, follow these steps:
Click Start, click Run, type regedit, and then click OK to start Registry Editor.
Locate the following registry key:
HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WindowsNT\\CurrentVersion\\Winlogon

Using your account name and password, double-click the DefaultUserName entry, type your user name, and then click OK.
Double-click the DefaultPassword entry, type your password under the value data box, and then click OK.

If there is no DefaultPassword value, create the value. To do this, follow these steps:
In Registry Editor, click Edit, click New, and then click String Value.
Type DefaultPassword as the value name, and then press ENTER.
Double-click the newly created key, and then type your password in the Value Data box.
If no DefaultPassword string is specified, Windows XP automatically changes the value of the AutoAdminLogon registry key from 1 (true) to 0 (false) to turn off the AutoAdminLogon feature.
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. To do this, 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.
Quit Registry Editor.
Click Start, click Restart, and then click OK.
After your computer restarts and Windows XP starts, you can log on automatically.

If you want to bypass the automatic logon to log on as a different user, hold down the SHIFT key after you log off or after Windows XP restarts. Note that this procedure applies only to the first logon. To enforce this setting for future logoffs, the administrator must set the following registry key:
HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WindowsNT\\CurrentVersion\\Winlogon