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Article ID: 941037 - Last Review: October 8, 2011 - Revision: 2.0

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When you insert a Secure Digital (SD) card into an internal SD card reader on a Windows XP-based computer, you can format the card. However, you cannot create a bootable SD card if you format it by using the FAT32 file system.

Note When you insert an SD card into an external univeral serial bus (USB) SD card reader, and you format the card by using the FAT32 file system, you can create a bootable card as expected.


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 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.
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirement
Sdbus.infNot applicable3,66903-Aug-200710:52Not applicableSP2
Sffdisk.infNot applicable4,43303-Aug-200710:52Not applicableSP2
Sdbus.infNot applicable3,66903-Aug-200710:52Not applicableSP2
Sffdisk.infNot applicable4,43303-Aug-200710:52Not applicableSP2


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


For more information about software update terminology, 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
kbautohotfix kbwinxppresp3fix kbwinxpsp3fix kbexpertisebeginner kbfix kbbug kbHotfixServer kbqfe KB941037
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