JSI Tip 4217. Error due to residual registry entries after you remove a network adapter?


When you use Control Panel / Network .... to remove a network adapter, residual entries in the registry may cause the following error message:

Component configuration option value missing in registry.

The System event log may contain:

Event ID: 7000
Description: A device attached to the system is not functioning.
To fix the problem:

1. Use regedt32 to navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\<Adapter>, if present, and delete the key.

2. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NWLinkIPX\NetConfig, if present, and delete any sub-key that pertains to the removed adapter.

3. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\<Adapter or Manufacturer>, if present, and delete any sub-key that pertains to the removed adapter.

4. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WindowsNT\CurrentVersion\NetworkCards, and delete any <number> sub-keys pertaining to the removed adapter.

5. Exit Regedt32 and restart your computer.



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