Cannot Remove Hard Disk Controller

The information in this article applies to:

· Microsoft Windows 98

· Microsoft Windows 95

Problem

1. When you check hard disk controllers in Safe Mode Device Manager you see duplication of the child devices.
2. You are removing the parent device(s) from Safe Mode Device Manager and the NOIDE key in the registry does not fix your problem.
3. You are trying to remove a hard disk controller in Device Manager

You may receive the following message:

This device is part of a multi-function device and cannot be removed independently. To remove this device, select and remove the multi-function parent. This will also remove any other devices that are part of the multi-function device.

This behaviour can occur if the parent device for the multi-function device has already been removed, and the child device is still displayed in Device Manager.

Fix

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys and Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" & "Edit Registry Data" Help topics in Regedt32.exe.
Note: You should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).

To resolve this issue, use Registry Editor to locate the following key:

HKEY_LOCAL_MACHINE\Enum\MF\CHILDxxxx

Where xxxx represents the numeric value of the folder.

Delete the following folder under each CHILDxxxx device

PCI&VEN_8086&DEV_xxxx&SUBSYS_00000000&REV_00&BUS_00&DEV_0D&FUNC_01,

Where xxxx is assigned a different value for different child devices related to the same parent.

This removes the child device from Device Manager and allows Windows 98 to properly detect and set up the hard disk controller.

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