On Windows 8, 7, click the Start button and select Control Panel.

Select Microsoft Word from the Apps list and select Modify. On Windows 10, right-click the Start button and click Apps and Features. If MS Word is not responding on your Windows 10/8/7 PC when you try to save or open a document, you can start to fix the problem by repairing the Microsoft Word application. Microsoft Word Not Responding When Opening or Saving a Document(Windows)