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Microsoft KB Archive/925182

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Knowledge Base

Error message when you open a smart document solution in Word 2007: "The file could not be installed because there was a problem with the security certificate"

Article ID: 925182

Article Last Modified on 10/15/2007


  • Microsoft Office Word 2007

Important This article contains information about how to modify the registry. Make sure to 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:

256986 Description of the Microsoft Windows registry


On a computer that is running a 64-bit version of Microsoft Windows Vista or of Microsoft Windows XP, you open a smart document solution in Microsoft Office Word 2007. When you do this, you receive the following error message:

"The file could not be installed because there was a problem with the security certificate. The XML expansion pack may not work as expected. For more information, contact your administrator."


This issue occurs because the DisableManifestSecurityCheck registry value is in the wrong registry hive on the computer. A 32-bit program must store the HKEY_LOCAL_MACHINE subkeys under the following registry hive:



Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

To resolve this issue, follow these steps:

  1. Start Registry Editor. To do this, use one of the following methods:
    • On a computer that is running Windows Vista, click Start[GRAPHIC: Start button], type regedit in the Start Search box, and then click regedit in the Programs list.

      [GRAPHIC: User Account Control permission] If you are prompted for an administrator password or for a confirmation, type the password, or click Continue.
    • On a computer that is running Windows XP, click Start, click Run, type regedit, and then click OK.
  2. Locate and then click the following registry key:


  3. On the Edit menu, point to New, and then click Key.
  4. Type Smart Tag, and then press ENTER.
  5. On the Edit menu, point to New, and then click DWORD Value.
  6. Type DisableManifestSecurityCheck, and then press ENTER.
  7. On the Edit menu, click Modify.
  8. Type 1, and then click OK.
  9. Exit Registry Editor.

Additional query words: wd12 wd2007 wd2k7 word12 word2007 word2k7 2k7 12 itanium x64

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