You use Windows Vista or Windows Preinstallation Environment (Windows PE) 2.0 to create partitions on a hard disk. After you do this, you try to install Microsoft Windows XP on the hard disk without using Windows XP to repartition the disk. In this case, you cannot install Windows XP successfully.
Windows XP Setup will successfully complete the text-mode part of Setup. However, after the text-mode part of Setup is complete, the computer cannot be restarted successfully to enter the graphical user interface (GUI)-mode part of Setup. Additionally, the computer may stop responding. You may receive an error message that resembles one of the following:

A disk read error occurred

Unable to load operating system

When you deploy a Windows XP Professional sysprep image to a system, the system may continuously restart after you start the system for the first time. If you press F8 and then disable the "automatic restart" option, you may receive the following Stop error:

Stop: 0x000000ED (0X81F85678, 0xC000014F,0x00000000,0x00000000)

Additionally, if you view the disk in Windows PE 2.0, the disk may appear as "raw."



This problem occurs because Windows Vista and Windows PE 2.0 create disk partitions differently than Windows XP. This problem occurs only on computers that use certain BIOS firmware.


To work around this problem, use one of the following methods.

Method 1: Disable the "automatic disk translation" feature

Before you partition the hard disk, you can disable the "automatic disk translation" feature in the BIOS configuration. For example, you can change the disk type from Auto to Large.

Method 2: Modify the registry to use the Windows XP disk partition procedure

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
Before you partition the hard disk in Windows Vista or in Windows PE 2.0, modify the registry so that the partitions are created by using the Windows XP procedure. To do this, follow these steps:

1.  Click Start, click Run, type regedit, and then click OK.

2.  Locate and then click the following registry subkey:


3.  On the Edit menu, point to New, and then click DWORD value.

4.  Type LessThan4GB as the new entry name.

5.  Right-click LessThan4GB, and then click Modify.

6.  In the Edit DWORD Value dialog box, click Decimal.

7.  In the Value data box, type 0, and then click OK.

8.  Repeat steps 3 through 7 to add the following registry entries:




Each registry entry must have a value of 0.

9.  Exit Registry Editor.


To resolve this problem, you must integrate the hotfix into the source files of the Windows XP installation before you install Windows XP. For more information about how to integrate this hotfix into the Windows installation source files, click the following article number to view the article in the Microsoft Knowledge Base:

828930 ( How to integrate software updates into your Windows installation source files


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. 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 Microsoft Windows XP 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: (

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.

This hotfix requires Windows XP Service Pack 2 (SP2).

322389 ( How to obtain the latest Windows XP service pack

Restart requirement
You 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.
Windows XP with SP2, x86-based versions

File name      Ntoskrnl.exe
File version   5.1.2600.3086
File size        2,182,144
Date             19-Feb-2007
Time             10:44
Platform        x86

Source: You cannot install Windows XP successfully after you use Windows Vista or Windows PE 2.0 to create partitions on a hard disk




Anthony Clendenen | Senior Technical Consultant | Microsoft Practices | Dimension Data

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