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Article ID: 839876 - Last Review: June 2, 2006 - Revision: 2.5

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When you start your Microsoft Windows XP-based computer you may receive the following Stop error message after the Windows XP splash screen appears:
Stop 0x000000D1 (0x0000001c, 0x00000002, 0x00000000, 0xf75ba58e)
An attempt was made to access a pageable (or completely invalid) address at an interrupt request level (IRQL) that is too high. This is usually caused by drivers using improper addresses.


This problem occurs because of a race condition that occurs in the ACPI power management code. The race condition occurs when the BIOS for the computer contains multiple tables and at least two of the tables contain power resources. This causes the ACPI code to access nodes that are not initialized, which creates the race condition.


Service pack information

To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389  ( ) How to obtain the latest Windows XP service pack

Hotfix information

A supported hotfix is 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 software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: (
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
The English version of this hotfix has the file attributes (or later) 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

   Date         Time   Version            Size    File name
   02-Apr-2004  17:48  5.1.2600.1502     179,328  Acpi.sys

Microsoft Windows XP 64-Bit Edition

   Date         Time   Version            Size    File name
   02-Apr-2004  17:47  5.1.2600.1502     632,576  Acpi.sys


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article. This problem was first corrected in Microsoft Windows XP Service Pack 2.


For additional 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

  • Microsoft Windows XP Professional
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP 64-Bit Edition Version 2002
kbautohotfix kbwinxpsp2fix kbwinxppresp2fix kbfix kbbug kbqfe kbhotfixserver KB839876
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