Article ID: 2768362 - View products that this article applies to.
After you enable an AppLocker policy to restrict the use of Microsoft Office 2010, you cannot open certain Office documents in Protected View. Additionally, you receive an error message that incorrectly states that the file is corrupted.
To resolve this issue, apply the following update:
(http://support.microsoft.com/kb/2760767/ )Description of the Office 2010 hotfix package (Mso-x-none.msp): February 12, 2013
Registry key informationImportant This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756After you install the hotfix package, follow these steps to enable the hotfix:
(http://support.microsoft.com/kb/322756/ )How to back up and restore the registry in Windows
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 2768362 - Last Review: March 1, 2013 - Revision: 4.0