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Symptoms

Consider the following scenario:

  • You install the Hyper-V role on a computer that is running Windows Server 2008 R2.

  • You install Red Hat Linux on a virtual machine.

  • You connect to the virtual machine from a computer that is connected to a non-US keyboard.

In this scenario, the AltGr key does not work in the Red Hat Linux virtual machine.

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 website:

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 Server 2008 R2 or Windows Server 2008 R2 Service Pack 1 (SP1). Additionally, you must have the Hyper-V role installed.

For more information about how to obtain a 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

Important This article contains information about how to modify the registry. Make sure that you back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:

322756 How to back up and restore the registry in Windows
After apply this hotfix, you must create a registry key.

To have us create the registry key for you, go to the "Fix it for me" section. If you prefer to create the registry key yourself, go to the "Let me fix it myself" section.

Fix it for me



To create the registry key automatically, click the Fix it button or link. Then click Run in the File Download dialog box, and follow the steps in the Fix it wizard.




Notes

  • Install the hotfix in the "Hotfix download available" section at the top of this Knowledge Base article before you run this Fix it solution.

  • This wizard may be in English only. However, the automatic fix also works for other language versions of Windows.

  • If you are not on the computer that has the problem, save the Fix it solution to a flash drive or a CD and then run it on the computer that has the problem.


Then, go to the "Did this fix the problem?" section.



Let me fix it myself

To create the registry key , follow these steps:

  1. Click Start, type regedit in the Search programs and files box, and then press Enter.

    If you are prompted for an administrator password, type the password. If you are prompted for confirmation, provide confirmation.

  2. Locate and then click the following registry subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Virtualization\Worker

  3. On the Edit menu, point to New, and then click DWORD Value.

  4. Type KeyboardWorkaroundEnabled, and then press Enter.

  5. Right-click KeyboardWorkaroundEnabled, and then click Modify.

  6. In the Value data box, type 1, and then click OK.

  7. Exit Registry Editor.


Did this fix the problem?

  • Check whether the problem is fixed. If the problem is fixed, you are finished with this section. If the problem is not fixed, you can contact support.

  • We would appreciate your feedback. To provide feedback or to report any issues with this solution, please leave a comment on the "Fix it for me" blog or send us an email.





Note You will need to reboot the server after we create the KeywordWorkaroundEnabled key.Note: You will need to reboot the server after we create the KeywordWorkaroundEnabled key..

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 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
    0.20xxx

    Windows Server 2008 R2

    RTM

    LDR

    6.1.760
    1.21xxx

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

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

File name

File version

File size

Date

Time

Platform

Vmwp.exe

6.1.7600.21211

3,593,216

10-May-2012

03:24

x64

Vmwp.exe

6.1.7601.21991

3,682,816

10-May-2012

03:16

x64

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 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 Server 2008 R2

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

File name

Amd64_2b853bceed3eb54a37fe8f32088927d9_31bf3856ad364e35_6.1.7600.21211_none_45e0a11f54efce6a.manifest

File version

Not applicable

File size

703

Date (UTC)

10-May-2012

Time (UTC)

19:27

Platform

Not applicable

File name

Amd64_f815224c19a0d90ea4d07572b4aa69c1_31bf3856ad364e35_6.1.7601.21991_none_400c6647077ff073.manifest

File version

Not applicable

File size

703

Date (UTC)

10-May-2012

Time (UTC)

19:27

Platform

Not applicable

File name

Amd64_microsoft-hyper-v-vstack-vmwp_31bf3856ad364e35_6.1.7600.21211_none_9206b07092624542.manifest

File version

Not applicable

File size

256,418

Date (UTC)

10-May-2012

Time (UTC)

06:32

Platform

Not applicable

File name

Amd64_microsoft-hyper-v-vstack-vmwp_31bf3856ad364e35_6.1.7601.21991_none_9396b5f48fc95d74.manifest

File version

Not applicable

File size

276,830

Date (UTC)

10-May-2012

Time (UTC)

18:26

Platform

Not applicable

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

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