Microsoft KB Archive/890463

= You may receive a &quot;Stop 0x000007B INACCESSIBLE_BOOT_DEVICE&quot; error message after you install Windows XP Service Pack 2 =

Article ID: 890463

Article Last Modified on 8/29/2007

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APPLIES TO


 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional x64 Edition

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SYMPTOMS
Consider the following scenario:
 * You have a computer that has a bridged Peripheral Component Interconnect (PCI) display adapter.
 * This display adapter is inserted into a PCI Express (PCIe) slot in the computer.
 * You upgrade the computer to Microsoft Windows XP Service Pack 2 (SP2).

In this scenario, you may receive the following error message when the computer restarts:


 * Stop 0x000007B

INACCESSIBLE_BOOT_DEVICE



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 &quot;Symptoms&quot; 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. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

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

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:
 * 1) Remove the bridged VGA adapter from the computer.
 * 2) Restart the computer, and then let the Windows Setup program finish the installation of Windows XP SP2.
 * 3) 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:
 * 1) Move the bridged VGA adapter from the current slot in the computer to a different slot.
 * 2) Restart the computer, and then let the Windows Setup program finish the installation of Windows XP SP2.
 * 3) Shut down the computer, insert the bridged VGA adapter into the original slot, and then restart the computer.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

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MORE INFORMATION
For more information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbwinxpsp3fix kbwinxppresp3fix kbfix kbbug kbqfe kbhotfixserver KB890463

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