Microsoft KB Archive/822624

= Computer stops responding at restart if the ACPI RESET_REG method is used with APIC =

Article ID: 822624

Article Last Modified on 11/4/2007

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APPLIES TO


 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition
 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Advanced Server

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SYMPTOMS
After you restart a Microsoft Windows XP-based or a Microsoft Windows 2000-based computer, the computer may stop responding (hang), or the display may be corrupted.

This problem may occur on Advanced Configuration and Power Interface (ACPI)-compliant computers that use Advanced Programmable Interrupt Controllers (APICs) if the computers use the ACPI RESET_REG method instead of using the keyboard controller to restart. This configuration typically occurs with legacy-free computers (that have no legacy keyboard controller) that use Hyper-Threading processors with APICs.



Service pack information
To resolve this problem, obtain the latest service pack for Windows XP. For more 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
To enable this hotfix, you must add the /forceresetreg flag to the Boot.ini file. For example, modify the Boot.ini file to resemble the following: [boot loader] timeout=30 default=multi(0)disk(0)rdisk(0)partition(2)\WINDOWS [operating systems] multi(0)disk(0)rdisk(0)partition(2)\WINDOWS=&quot;Microsoft Windows XP Professional&quot; /noexecute=optin /fastdetect /forceresetreg

Prerequisites
To apply this hotfix, you must have Windows XP Service Pack 1 (SP1) installed on the computer.

Restart requirement
You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
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 item in Control Panel.   Date         Time   Version        Size     File name --  07-Oct-2003  22:09  5.1.2600.1303  128,512  Halaacpi.dll 29-Sep-2003 21:37  5.1.2600.1277  130,688  Halmacpi.dll

Hotfix information
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only 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 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer 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.

Prerequisites
To apply this hotfix, you must have Windows 2000 Service Pack 3 (SP3) installed on the computer.

Restart requirement
You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
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 item in Control Panel.   Date         Time   Version        Size     File name --  16-Oct-2003  00:04  5.0.2195.6866  83,456   Halaacpi.dll 16-Oct-2003 00:04  5.0.2195.6866  84,352   Halmacpi.dll 16-Oct-2003 00:15                  7,502   Kb822624.cat



WORKAROUND
To work around this problem, disable APIC and then enable PIC in the BIOS if the BIOS supports changing the Interrupt Controller mode.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Microsoft Windows XP Service Pack 2.



MORE INFORMATION
For more information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

816915 New file naming schema for Microsoft Windows software update packages

For more information about the terms that are used to describe software updates, 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

Additional query words: win2k win2000 winxp multiprocessor multiproc boot reset

Keywords: kbhotfixserver kbwinxpsp2fix kbwinxppresp2fix kbbug kbfix kbqfe kbwin2000presp5fix KB822624

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