Microsoft small business knowledge base

Article ID: 312131 - Last Review: May 15, 2007 - Revision: 1.6

Hotfix Download Available
View and request hotfix downloads
This article was previously published under Q312131


The Owner account may not be removed correctly when you run Setup on computers that are running Windows XP Home Edition. The Owner account is displayed as "Account Unknown" when you view profiles on the computer. Also, the Owner folder is not removed because the profile is not removed. Note that other problems occur if an Owner account is used or created during the remainder of setup or Out of Box Experience (OOBE).


This problem occurs because the OOBE code does not delete the Owner account during Setup.


To resolve this problem, obtain the latest service pack for 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.

File information

The English-language version of this fix should have the following file attributes or later:
   Date          Time  Version      Size     File name     
   12-Dec-2001  18:54  5.1.2600.22  532,992  Msobmain.dll
   19-Oct-2001  10:20               169,576  Msobshel.htm


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows XP Service Pack 1.


When you run Sysprep, the Sysprep process creates a new site for the existing user account. This is not a problem; however, a program may use the existing Security Identifiers (SIDs) as a key to encrypt and decrypt data (such as the Protected Storage service). After the SID changes during Sysprep, the SIDs are not correct.

This problem does not occur on Microsoft Windows XP Professional-based computers because the Administrator account is used during Setup. This problem also does not occur on Windows XP Home Edition-based computers if you do not use the Owner name as the default user. The OOBE deletes the Owner account before completing the procedure after you install the fix from this article.

NOTE: Existing data in the Owner folder from the Owner and the Administrator is copied to the Default User folder before it is deleted.

  • Microsoft Windows XP Home Edition
kbautohotfix kbhotfixserver kbqfe kbbug kbenv kbfix kbsetup kbwinxpsp1fix KB312131
Additional support options
Ask The Microsoft Small Business Support Community
Contact Microsoft Small Business Support
Find Microsoft Small Business Support Certified Partner
Find a Microsoft Store For In-Person Small Business Support