"The file is corrupted and cannot be opened" error message when you open an attachment in Office 2010

Symptoms

When you try to open a Microsoft Office email attachment in Microsoft Outlook 2010, Microsoft Office 2010 reports a problem with the file, and the file does not open. 
Error message details

Resolution

If you want to manually set component security settings back to the default settings, follow these steps:
  1. Click Start, type dcomcnfg in the Search box, and then click dcomcnfg in the Programs list.
  2. In the navigation pane, expand Component Services, expand Computers, right-click My Computer, and then click Properties.




  3. Open the Default Properties tab, and then set the following values:
    • Default Authentication Level: Connect
    • Default Impersonation Level: Identify




  4. Click OK.

Properties

Article ID: 2387587 - Last Review: Aug 5, 2016 - Revision: 1

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