Bypassing the Windows NT Logon Process

Knowledge Base Article # Q200009

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Summary Steps required to automate the Windows NT Logon Process
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WARNING: Use this procedure only when absolutely necessary. Follow the procedures carefully. If the registry editor is used improperly, you may have to reinstall Windows NT to correct problems. Back-up pertinent data. Geotest - Marvin Test Systems, Inc. provides this information as a courtesy to its users. Geotest is not responsible nor liable for any damage caused by following these procedures.

Windows NT allows you to automate the logon process by storing your password and other pertinent information in the Registry database.

Note: Storing login and password information in the Registry database allows other users to start your computer and use the account you establish to automatically logon. Timing conflicts can also occur. For example, if you have several network transports loaded, enabling automatic logon may make Windows NT attempt to connect to network resources before the network transports are completely loaded.

Use the Registry Editor (REGEDT32.EXE), available as part of Windows NT operating system, to add your logon information, as follows:

1.   Start REGEDT32.EXE and locate the following Registry subkey:

2.   Establish your domain name, account name, and password using the values you would normally type when logging on. You should assign the following values:

  • DefaultDomainName
  • DefaultUserName
  • DefaultPassword

Note: The DefaultPassword value may not exist. If it doesn't, from the Edit menu, choose Add Value. In the Value Name field, type:

Select REG_SZ for the Data Type. In the String field, type your password. Save your changes.

Also, if no DefaultPassword value string is specified, Windows NT automatically changes the value of the AutoAdminLogon key from 1 (true) to 0 (false), thus disabling the AutoAdminLogon feature.
3.   From the Edit menu, choose Add Value. Enter AutoAdminLogon in the Value
      Name field. Select REG_SZ for the Data Type. Enter 1 in the String field. Save your changes.

4.   Exit REGEDT32.

5.   Exit Windows NT and turn off your computer.

6.   Restart your computer and Windows NT. You should be able to logon automatically.

Article Date 9/20/2000
Keywords Windows. Logon

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