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Article ID: 939210 - Last Review: January 16, 2015 - Revision: 2.0

This article has been archived. It is offered "as is" and will no longer be updated.

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When you start Windows Vista for the first time, the operating system appears to stop responding (hang) for several minutes during the device installation phase. After this wait, Windows starts as usual.


This problem occurs because Windows cannot correctly determine whether image content is supported on removable storage media, such as an attached camera or card reader.


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 now available from Microsoft. However, it is intended to correct only the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, obtain the hotfix from the Microsoft Download Center.

Download information

The following files are available for download from the Microsoft Download Center:

Windows Vista, 32-bit versions (all languages)

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Download the Windows6.0-KB939210-v2-x86.msu package now. (

Windows Vista, 64-bit versions (all languages)

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Download the Windows6.0-KB939210-v2-x64.msu package now. (

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591  ( ) How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

The global 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.
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File nameFile versionFile sizeDateTimePlatform


Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Vista Service Pack 1.


This issue only occurs the very first time that Windows is started. Later starts do not experience this problem.

  • Windows Vista Ultimate
  • Windows Vista Home Premium
  • Windows Vista Home Basic
  • Windows Vista Enterprise
  • Windows Vista Business
kbnosurvey kbarchive atdownload kbvistasp1fix kbfix KB939210
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