Symptoms

Consider the following scenario:

  • You have a computer that is running Windows Server 2008 R2 Service Pack 1 (SP1) or Windows 7 Service Pack 1 (SP1). The computer supports PCI Express Serial Number Capability.

  • You configure the computer to start from an iSCSI disk.

  • You use an identical device to replace the iSCSI network adapter. For example, the network adapter is a separate network adapter card, or the network adapter is a built-in device on a motherboard.

    For example, you replace the device because of a hardware failure.

  • You log on to the computer, and then you restart the computer.

In this scenario, you receive the following Stop error message:

STOP 0x0000007B ( parameter1, parameter2, parameter3, parameter4 ) INACCESSIBLE_BOOT_DEVICE

Notes

  • The four parameters in this Stop error message may vary, depending on the configuration of the computer.

  • Not all "0x0000007B" Stop error messages are caused by this issue.

  • A similar issue occurs on computers that are running Windows Server 2008 or Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

    2487376 FIX: Stop error when you replace an iSCSI network adapter or a motherboard by using an identical device on a Windows Server 2008-based or Windows Vista-based computer: "0x0000007B"

  • Note the replacement network adapter must be placed in the same slot as the original network adapter.

  • After applying this hotfix, even when you replace the device with the PCI Express device holding a different serial number, the device instance path would not be modified as long as the same device model is connected to the same slot. In this case, the same device instance path, which is stored in the registry, would continue to be used. Thus, the reinstallation of the device does not occur.

  • Note that if the failed iSCSI network adapter is a built-in device, and you choose to use a different built-in adapter for iSCSI boot, that installing this hotfix will not resolve the issue, because the adapter would not be in the same PCI-Express location. You would need to manually unbind the Light Weight Filter (LWF) from the second network adapter. See the following KBs for more details: KB2507616, KB976042

Cause

This issue occurs because Windows recognizes the network adapter or the motherboard as a new device.

When the serial number of the network adapter or of the motherboard differs from the serial number of the previous network adapter or motherboard, Windows recognizes a new device.

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

To apply this hotfix, you must be running Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 Service Pack 1 (SP1).

For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

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 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 files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.1.760
    0.16xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    GDR

    6.1.760
    0.20xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    LDR

    6.1.760
    1.17xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    GDR

    6.1.760
    1.21xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • 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 7 and for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical 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

Agp440.sys

6.1.7600.16385

53,312

14-Jul-2009

01:26

x86

Amdagp.sys

6.1.7600.16385

53,312

14-Jul-2009

01:26

x86

Isapnp.sys

6.1.7600.16385

46,656

14-Jul-2009

01:20

x86

Msisadrv.sys

6.1.7600.16385

13,888

14-Jul-2009

01:20

x86

Mssmbios.sys

6.1.7600.16385

28,240

14-Jul-2009

01:20

x86

Nv_agp.sys

6.1.7600.16385

105,024

14-Jul-2009

01:20

x86

Pci.sys

6.1.7601.17630

153,984

11-Jun-2011

04:27

x86

Sisagp.sys

6.1.7600.16385

52,304

14-Jul-2009

01:19

x86

Streamci.dll

6.1.7600.16385

22,096

14-Jul-2009

01:19

x86

Swenum.sys

6.1.7600.16385

12,240

14-Jul-2009

01:19

Not applicable

Termdd.sys

6.1.7601.17514

53,120

20-Nov-2010

12:30

x86

Uliagpkx.sys

6.1.7600.16385

57,424

14-Jul-2009

01:19

x86

Vdrvroot.sys

6.1.7600.16385

32,832

14-Jul-2009

01:19

x86

Viaagp.sys

6.1.7600.16385

53,328

14-Jul-2009

01:19

x86

Volmgr.sys

6.1.7601.17514

53,120

20-Nov-2010

12:30

x86

Agp440.sys

6.1.7600.16385

53,312

14-Jul-2009

01:26

x86

Amdagp.sys

6.1.7600.16385

53,312

14-Jul-2009

01:26

x86

Isapnp.sys

6.1.7600.16385

46,656

14-Jul-2009

01:20

x86

Msisadrv.sys

6.1.7600.16385

13,888

14-Jul-2009

01:20

x86

Mssmbios.sys

6.1.7600.16385

28,240

14-Jul-2009

01:20

x86

Nv_agp.sys

6.1.7600.16385

105,024

14-Jul-2009

01:20

x86

Pci.sys

6.1.7601.21744

154,496

11-Jun-2011

05:54

x86

Sisagp.sys

6.1.7600.16385

52,304

14-Jul-2009

01:19

x86

Streamci.dll

6.1.7600.16385

22,096

14-Jul-2009

01:19

x86

Swenum.sys

6.1.7600.16385

12,240

14-Jul-2009

01:19

Not applicable

Termdd.sys

6.1.7601.17514

53,120

20-Nov-2010

12:30

x86

Uliagpkx.sys

6.1.7600.16385

57,424

14-Jul-2009

01:19

x86

Vdrvroot.sys

6.1.7600.16385

32,832

14-Jul-2009

01:19

x86

Viaagp.sys

6.1.7600.16385

53,328

14-Jul-2009

01:19

x86

Volmgr.sys

6.1.7601.21744

53,120

11-Jun-2011

05:54

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

Agp440.sys

6.1.7600.16385

61,008

14-Jul-2009

01:52

x64

Isapnp.sys

6.1.7600.16385

20,544

14-Jul-2009

01:48

x64

Msisadrv.sys

6.1.7600.16385

15,424

14-Jul-2009

01:48

x64

Mssmbios.sys

6.1.7600.16385

32,320

14-Jul-2009

01:48

x64

Nv_agp.sys

6.1.7600.16385

122,960

14-Jul-2009

01:48

x64

Pci.sys

6.1.7601.17630

184,704

11-Jun-2011

05:39

x64

Streamci.dll

6.1.7600.16385

24,144

14-Jul-2009

01:45

x64

Swenum.sys

6.1.7600.16385

12,496

14-Jul-2009

01:45

x64

Termdd.sys

6.1.7601.17514

63,360

20-Nov-2010

13:33

x64

Uliagpkx.sys

6.1.7600.16385

64,592

14-Jul-2009

01:45

x64

Vdrvroot.sys

6.1.7600.16385

36,432

14-Jul-2009

01:45

x64

Volmgr.sys

6.1.7601.17514

71,552

20-Nov-2010

13:34

x64

Agp440.sys

6.1.7600.16385

61,008

14-Jul-2009

01:52

x64

Isapnp.sys

6.1.7600.16385

20,544

14-Jul-2009

01:48

x64

Msisadrv.sys

6.1.7600.16385

15,424

14-Jul-2009

01:48

x64

Mssmbios.sys

6.1.7600.16385

32,320

14-Jul-2009

01:48

x64

Nv_agp.sys

6.1.7600.16385

122,960

14-Jul-2009

01:48

x64

Pci.sys

6.1.7601.21744

185,216

11-Jun-2011

05:25

x64

Streamci.dll

6.1.7600.16385

24,144

14-Jul-2009

01:45

x64

Swenum.sys

6.1.7600.16385

12,496

14-Jul-2009

01:45

x64

Termdd.sys

6.1.7601.17514

63,360

20-Nov-2010

13:33

x64

Uliagpkx.sys

6.1.7600.16385

64,592

14-Jul-2009

01:45

x64

Vdrvroot.sys

6.1.7600.16385

36,432

14-Jul-2009

01:45

x64

Volmgr.sys

6.1.7601.21744

70,528

11-Jun-2011

05:25

x64

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

File name

File version

File size

Date

Time

Platform

Agp460.sys

6.1.7600.16385

137,216

13-Jul-2009

23:45

IA-64

Isapnp.sys

6.1.7600.16385

34,384

14-Jul-2009

01:58

IA-64

Msisadrv.sys

6.1.7600.16385

22,592

14-Jul-2009

01:58

IA-64

Mssmbios.sys

6.1.7600.16385

58,432

14-Jul-2009

01:58

IA-64

Pci.sys

6.1.7601.17630

456,064

11-Jun-2011

04:08

IA-64

Streamci.dll

6.1.7600.16385

43,072

14-Jul-2009

01:56

IA-64

Swenum.sys

6.1.7600.16385

16,192

14-Jul-2009

01:56

Not applicable

Termdd.sys

6.1.7601.17514

162,688

20-Nov-2010

10:33

IA-64

Vdrvroot.sys

6.1.7600.16385

66,112

14-Jul-2009

01:56

IA-64

Volmgr.sys

6.1.7601.17514

160,640

20-Nov-2010

10:33

IA-64

Agp460.sys

6.1.7600.16385

137,216

13-Jul-2009

23:45

IA-64

Isapnp.sys

6.1.7600.16385

34,384

14-Jul-2009

01:58

IA-64

Msisadrv.sys

6.1.7600.16385

22,592

14-Jul-2009

01:58

IA-64

Mssmbios.sys

6.1.7600.16385

58,432

14-Jul-2009

01:58

IA-64

Pci.sys

6.1.7601.21744

458,112

11-Jun-2011

04:13

IA-64

Streamci.dll

6.1.7600.16385

43,072

14-Jul-2009

01:56

IA-64

Swenum.sys

6.1.7600.16385

16,192

14-Jul-2009

01:56

Not applicable

Termdd.sys

6.1.7601.17514

162,688

20-Nov-2010

10:33

IA-64

Vdrvroot.sys

6.1.7600.16385

66,112

14-Jul-2009

01:56

IA-64

Volmgr.sys

6.1.7601.21744

164,224

11-Jun-2011

04:13

IA-64

Status

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

More Information

This issue was previously resolved by hotfix 2344941 for Windows 2008 R2 and for Windows 7. The hotfix applies to versions of Windows 2008 R2 and Windows 7 that do not have Service Pack 1 applied. Hotfix 2550978 applies only to operating systems that have Service Pack 1 installed. If you installed Service Pack 1 on a computer that has hotfix 2344941 installed, you must apply this new hotfix to resolve this issue on Service Pack 1.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

2344941 "0x0000007B" Stop error when you replace an iSCSI or PCI Express network adapter or a motherboard with an identical device on a Windows Server 2008 R2-based or Windows 7-based computerFor 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-bf.mum

File version

Not applicable

File size

1,888

Date (UTC)

11-Jun-2011

Time (UTC)

09:51

Platform

Not applicable

File name

X86_machine.inf_31bf3856ad364e35_6.1.7601.17630_none_bc00b80d1d06c232.manifest

File version

Not applicable

File size

9,456

Date (UTC)

11-Jun-2011

Time (UTC)

09:56

Platform

Not applicable

File name

X86_machine.inf_31bf3856ad364e35_6.1.7601.21744_none_bc8386143628e349.manifest

File version

Not applicable

File size

9,456

Date (UTC)

11-Jun-2011

Time (UTC)

09:56

Platform

Not applicable

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

File name

Amd64_machine.inf_31bf3856ad364e35_6.1.7601.17630_none_181f5390d5643368.manifest

File version

Not applicable

File size

7,894

Date (UTC)

11-Jun-2011

Time (UTC)

10:00

Platform

Not applicable

File name

Amd64_machine.inf_31bf3856ad364e35_6.1.7601.21744_none_18a22197ee86547f.manifest

File version

Not applicable

File size

7,894

Date (UTC)

11-Jun-2011

Time (UTC)

10:00

Platform

Not applicable

File name

Update-bf.mum

File version

Not applicable

File size

1,900

Date (UTC)

11-Jun-2011

Time (UTC)

09:51

Platform

Not applicable

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

File name

Ia64_machine.inf_31bf3856ad364e35_6.1.7601.17630_none_bc025c031d04cb2e.manifest

File version

Not applicable

File size

6,844

Date (UTC)

11-Jun-2011

Time (UTC)

09:51

Platform

Not applicable

File name

Ia64_machine.inf_31bf3856ad364e35_6.1.7601.21744_none_bc852a0a3626ec45.manifest

File version

Not applicable

File size

6,844

Date (UTC)

11-Jun-2011

Time (UTC)

09:51

Platform

Not applicable

File name

Update-bf.mum

File version

Not applicable

File size

1,429

Date (UTC)

11-Jun-2011

Time (UTC)

09:51

Platform

Not applicable

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