This registry setting allows a user to automatically logon at any Windows network computer without giving a password.

Once AutoAdminLogon is turned on, the operating system reads the registry and attempts to logon the value specified by DefaultUserName. The key to AutoAdminLogon is setting the DefaultPassword for that default user, then the machine loads the desktop without anyone pressing Ctrl-Alt-Delete.

As you can see AutoAdminLogon is not secure since the password is not encrypted and easily viewed, but I confess to using it on my home machine.

Step 1 - Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon and check to see that all the following Value names exist: AutoAdminLogon, DefaultUserName, and DefaultPassword.
If one or all of the values do not exist then select Edit...New...String Value and enter one of the values listed above.

Step 2 - Set the AutoAdminLogon value to [1], the defaut value is [0]

Step 3 - Set the DefaultUserName and DefaultPassword to a value of your choice, you may choose the Administrator as the DefaultUserName but, this is not recommended (the Adminstrator account should only be used for "administrative" purposes).

To get AutoAdminLogon to work you need to add DefaultPassword to the same Winlogon area. Set the password to whatever it needs to be for the DefaultUserName to logon successfully.

Note:
To break out of AutoAdminLogon and select a different username, keep your finger on the Shift key before logon.

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