The "GetTempFileName" function fails together with an access denied error in Windows 7 or in Windows Server 2008 R2

Symptoms

On a computer that is running Windows 7 or Windows Server 2008 R2, an application calls the GetTempFileName function to create a temporary file. However, the GetTempFileName function fails, and you receive some transient errors that resemble the following:

Access to the path is denied.

You do not have access to <filepath>.

Cause

This issue occurs because the GetTempFileName function handles a duplicated file name incorrectly.

When the GetTempFileName function tries to create a temporary file name, it checks whether a duplicate file name already exists. If the GetTempFileName function finds a duplicated file name and the file is pending for deletion, the GetTempFileName function handles the duplicated file name incorrectly and fails altogether with the "ERROR_ACCESS_DENIED" error code.

The expected behavior is that the function retries to create another temporary file name.

Resolution

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 the problem described in this article. 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:

http://support.microsoft.com/contactus/?ws=supportNote 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.

Prerequisites

No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows 7 and Windows Server 2008 R2 file information notes


Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Kernelbase.dll

6.1.7600.20693

288,256

16-Apr-2010

07:20

x86

For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Kernelbase.dll

6.1.7600.20693

420,352

16-Apr-2010

07:29

x64

Kernelbase.dll

6.1.7600.20693

269,824

16-Apr-2010

07:18

x86

For all supported IA-64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Kernelbase.dll

6.1.7600.20693

717,824

16-Apr-2010

05:59

IA-64

Kernelbase.dll

6.1.7600.20693

269,824

16-Apr-2010

07:18

x86

Status

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

More Information

For more information about the GetTempFileName function, visit the following Microsoft Developer Network (MSDN) website:

General information about the "GetTempFileName" functionFor more information about the NTSTATUS values, visit the following MSDN website:

General information about the NTSTATUS valuesFor 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

Additional file information

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7

File name

Update.mum

File version

Not applicable

File size

1,674

Date (UTC)

16-Apr-2010

Time (UTC)

10:25

Platform

Not applicable

File name

X86_566758896d090f85fc8cb5f95c849a86_31bf3856ad364e35_6.1.7600.20693_none_211a4e5218931dcf.manifest

File version

Not applicable

File size

698

Date (UTC)

16-Apr-2010

Time (UTC)

10:25

Platform

Not applicable

File name

X86_microsoft-windows-kernelbase_31bf3856ad364e35_6.1.7600.20693_none_27559e8e2f0f2966.manifest

File version

Not applicable

File size

2,734

Date (UTC)

16-Apr-2010

Time (UTC)

07:56

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

Amd64_2194916ab24431d6bfd9fcb71de794de_31bf3856ad364e35_6.1.7600.20693_none_f1446242783acb06.manifest

File version

Not applicable

File size

702

Date (UTC)

16-Apr-2010

Time (UTC)

10:25

Platform

Not applicable

File name

Amd64_e30a797d077054280de565e75a8a3ce6_31bf3856ad364e35_6.1.7600.20693_none_c448767cdfc8c3cb.manifest

File version

Not applicable

File size

702

Date (UTC)

16-Apr-2010

Time (UTC)

10:25

Platform

Not applicable

File name

Amd64_microsoft-windows-kernelbase_31bf3856ad364e35_6.1.7600.20693_none_83743a11e76c9a9c.manifest

File version

Not applicable

File size

2,738

Date (UTC)

16-Apr-2010

Time (UTC)

08:50

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,328

Date (UTC)

16-Apr-2010

Time (UTC)

10:25

Platform

Not applicable

File name

Wow64_microsoft-windows-kernelbase_31bf3856ad364e35_6.1.7600.20693_none_8dc8e4641bcd5c97.manifest

File version

Not applicable

File size

2,746

Date (UTC)

16-Apr-2010

Time (UTC)

07:50

Platform

Not applicable

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

File name

Ia64_aa7e5d6fa743c1b1b31a1f9acbe9f961_31bf3856ad364e35_6.1.7600.20693_none_237f9d709bce10d3.manifest

File version

Not applicable

File size

700

Date (UTC)

16-Apr-2010

Time (UTC)

10:25

Platform

Not applicable

File name

Ia64_e30a797d077054280de565e75a8a3ce6_31bf3856ad364e35_6.1.7600.20693_none_682b7eef27695b91.manifest

File version

Not applicable

File size

701

Date (UTC)

16-Apr-2010

Time (UTC)

10:25

Platform

Not applicable

File name

Ia64_microsoft-windows-kernelbase_31bf3856ad364e35_6.1.7600.20693_none_275742842f0d3262.manifest

File version

Not applicable

File size

2,736

Date (UTC)

16-Apr-2010

Time (UTC)

08:50

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

1,684

Date (UTC)

16-Apr-2010

Time (UTC)

10:25

Platform

Not applicable

File name

Wow64_microsoft-windows-kernelbase_31bf3856ad364e35_6.1.7600.20693_none_8dc8e4641bcd5c97.manifest

File version

Not applicable

File size

2,746

Date (UTC)

16-Apr-2010

Time (UTC)

07:50

Platform

Not applicable

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