Microsoft KB Archive/815011

= Cannot Disable the Registry Repair and Recovery Feature in Windows XP SP1 =

Article ID: 815011

Article Last Modified on 8/29/2007

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional
 * Microsoft Windows XP Service Pack 1a
 * Microsoft Windows XP Service Pack 1a

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IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry





SYMPTOMS
Windows XP Service Pack 1 (SP1) does not call a fatal stop error when Windows finds a corrupted registry entry. If you want to troubleshoot the cause of the registry corruption, you cannot collect the corrupted registry before Windows tries to fix it.



CAUSE
Windows XP SP1 contains a registry resiliency feature to automatically delete corrupted registry keys when Windows starts, and when a user hive is loaded when a user logs on or loads a hive with Registry Editor.



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 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 fix 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.   Date         Time   Version        Size       File name --  20-Feb-2003  14:22  5.1.2600.1171  1,892,352  Ntkrnlmp.exe 20-Feb-2003 14:22  5.1.2600.1171  1,948,416  Ntkrnlpa.exe 20-Feb-2003 14:22  5.1.2600.1171  1,921,024  Ntkrpamp.exe 20-Feb-2003 14:22  5.1.2600.1171  1,924,608  Ntoskrnl.exe

Disable the Registry Repair and Recovery Feature
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To disable the Registry Repair and Recovery feature, install the hotfix that is described in this article, and then make the following registry change:

Key:

Name:

DWORD value: 0 indicates disabled



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 additional information about the registry resiliency feature, click the following article number to view the article in the Microsoft Knowledge Base:

318159 Damaged Registry Repair and Recovery in Windows XP

After you disable the Registry Repair and Recovery feature, Windows can stop with any of the following errors if a corrupted entry is accessed:
 * Unexpected Shutdown - Stop:0xc0000135
 * Stop: 0xc0000218 {Registry File Failure}

The registry cannot load the hive (file):

\SystemRoot\System32\Config\SYSTEM or its log or alternate.

It is corrupt, absent, or not writable...

Keywords: kbhotfixserver kbqfe kbwinxpsp2fix kbenv kbqfe kbwinxppresp2fix kbfix kbbug KB815011

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