Error message on a Windows Vista-based computer that has a storage device inserted into a card bus adapter: "STOP: 0x00000050"

This article has been archived. It is offered "as is" and will no longer be updated.
When you start a Windows Vista-based computer, you may receive a Stop 0x50 error message that resembles the following:
*** STOP: 0x00000050 (parameter1, parameter2, parameter3, parameter4)
This problem occurs on a computer that has the following hardware installed:
  • A card bus adapter
  • A storage device that is inserted into the card bus adapter

    The storage device might be one of the following:
    • A secure digital (SD) card
    • A compact flash (CF) card
    • An external Serial Advanced Technology Attachment (eSATA) hard disk drive that is running in SATA Advanced Host Controller Interface (AHCI) mode
This problem may occur if the resource requirements of the installed devices do not match those requested by the BIOS. In this situation, a rebalance of AHCI registers occurs. This behavior triggers the Stop 0x50 error message.

Service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista 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.


No prerequisites are required.

Restart requirement

You must restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

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 Vista, x86-based versions
File nameFile versionFile sizeDateTimePlatform
Update.mumNot applicable2,02414-Jun-200713:04Not applicable
X86_mshdc.inf_31bf3856ad364e35_6.0.6000.20619_none_dbd9b7073d80e04e.manifestNot applicable5,81814-Jun-200713:05Not applicable
Windows Vista, 64-bit versions
File nameFile versionFile sizeDateTimePlatform
Amd64_mshdc.inf_31bf3856ad364e35_6.0.6000.20619_none_37f8528af5de5184.manifestNot applicable5,82014-Jun-200713:12Not applicable
Update.mumNot applicable2,02414-Jun-200713:04Not applicable
To work around this problem, remove all storage devices from the card bus adapter before you start the computer.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Vista Service Pack 1.
The symptoms of a Stop error may vary, depending on the failure options that have been configured in Microsoft Windows.

For more information about how to configure system failure options, click the following article number to view the article in the Microsoft Knowledge Base:
307973 How to configure system failure and recovery options in Windows
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
824684Description of the standard terminology that is used to describe Microsoft software updates
STOP BugCheck Bug Check BSOD hang freeze NMI bluescreen blue screen

Article ID: 938239 - Last Review: 01/16/2015 09:40:11 - Revision: 3.1

Windows Vista Home Basic 64-bit Edition, Windows Vista Home Premium 64-bit Edition, Windows Vista Business 64-bit Edition, Windows Vista Enterprise 64-bit Edition, Windows Vista Ultimate 64-bit Edition, Windows Vista Starter, Windows Vista Home Basic, Windows Vista Home Premium, Windows Vista Business, Windows Vista Enterprise, Windows Vista Ultimate

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