You may receive a "Stop 0x000007B INACCESSIBLE_BOOT_DEVICE" error message after you install Windows XP Service Pack 2 (890463)

CAUSE

This problem may occur if your computer uses an add-on PCI adapter that has an integrated PCI-to-PCI bridge and graphics adaptor. An example of this type of device is a remote access adapter that has multiple, integrated devices such as graphics and integrated device electronics (IDE) or Advanced Technology Attachment (ATA) controllers.

This problem occurs because the ISA Enable and VGA Enable bridge control registers may become incorrectly set. Therefore, the boot controller may not be assigned the correct PCI resources. If the boot controller is not assigned the correct PCI resources during the startup process, the hard disk from which Windows starts becomes inaccessible. Therefore, you experience the Stop error that is mentioned in the "Symptoms" section.

RESOLUTION

To resolve this problem, follow these steps:

Use the Recovery Console method as described in Microsoft Knowledge Base article 875350 to uninstall Windows XP SP2.

For more information about how to uninstall Windows XP Service Pack 2 by using the Recovery Console, click the following article number to view the article in the Microsoft Knowledge Base:
875350 How to remove Windows XP Service Pack 2 from your computer
Install hotfix 890463.
Reinstall Windows XP SP2.

Contact Microsoft Product Support Services (PSS) for help with this procedure. For information about how to contact Microsoft PSS, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

For more information about how to help protect your computer when you remove Windows XP Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:

878454 How to help protect your computer if you decide to remove Windows XP Service Pack 2 from your Windows XP-based computer or from your Windows XP Tablet PC 2005-based Tablet PC

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
Windows XP, 32-bit editions


   Date         Time   Version            Size    File name
   --------------------------------------------------------------
   16-Dec-2004  02:44  5.1.2600.1615      62,976  Pci.sys
   16-Dec-2004  18:34  5.1.2600.2585      68,224  Pci.sys

Windows XP, 64-bit edition


   Date         Time   Version            Size    File name
   --------------------------------------------------------------
   16-Dec-2004  02:45  5.1.2600.1615     210,944  Pci.sys

WORKAROUND

To work around this problem and to avoid having to remove Windows XP SP2, use one of the following methods.

Method 1: Remove the bridged VGA adapter

To remove the bridged VGA adapter, follow these steps:

Remove the bridged VGA adapter from the computer.
Restart the computer, and then let the Windows Setup program finish the installation of Windows XP SP2.
Shut down the computer, reinstall the bridged VGA adapter, and then restart the computer.

Method 2: Put the bridged VGA adapter into a different slot

To put the bridged VGA adapter into a different slot, follow these steps:

Move the bridged VGA adapter from the current slot in the computer to a different slot.
Restart the computer, and then let the Windows Setup program finish the installation of Windows XP SP2.
Shut down the computer, insert the bridged VGA adapter into the original slot, and then restart the computer.