Microsoft KB Archive/146333

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How to remove network adapters from the registry

Article ID: 146333

Article Last Modified on 11/1/2006


  • Microsoft Windows NT Workstation 3.5
  • Microsoft Windows NT Workstation 3.51
  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 3.5
  • Microsoft Windows NT Server 3.51
  • Microsoft Windows NT Server 4.0 Standard Edition

This article was previously published under Q146333

Important This article contains information about how to modify the registry. Make sure to back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows registry


Occasionally you may not be able to remove a network adapter using the remove button in Control Panel\Network. If this happens you can remove the registry keys for that adapter.


Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

  1. Start Registry Editor (REGEDT32.EXE).
  2. From the


subtree remove the following subkeys:

    • \SOFTWARE\Microsoft\adapter
    • \SOFTWARE\Microsoft\WindowsNT\CurrentVersion\NetworkCards\# (If only one adapter is loaded, # will be 1)
    • \SYSTEM\CurrentControlSet\Services\adapter
  1. Quit Registry Editor and reboot.

Additional query words: prodnt

Keywords: KB146333