|Two more things you might try to see if they help.|
First try to re-register Word.
The /r is a Command Line switch that will force a re-register of Word in the Windows Registry.
In the Run box type: Winword.exe /r
You may need the whole path to Winword.exe which should be something like:
C:\Program Files\Microsoft Office\Office\Winword.exe
You could also try a System File Check:
The System File Check will inspect all of the important Windows files on your computer, including Windows DLL files.
If System File Checker finds an issue with any of these protected files, it will replace it.
In the Run box type: sfc /scannow