Error when double clicking an Office Document: Windows cannot find the file

Windows would give me an error whenever I tried to open a document outside of Word or Excel.

Windows cannot find ‘path\file’

Opening the file from within Word or Excel worked without an error.

1.In the Office application go to  Options, click the Advanced category, and clear the Ignore other applications that use Dynamic Data Exchange (DDE) check box.

2.In Windows, open a command prompt

3.Navigate to the Office directory.
On my machine that is C:\Program Files\Microsoft Office\Office14

4.Enter these commands:

excel.exe /unregserver
excel.exe /regserver
winword.exe /unregserver
winword.exe /regserver

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