Click the "Help" menu and then click on "Microsoft Office Word Help"
The Task Pane shows with Word Help selected.
Down at the bottom in the Word Help Task Pane where is says "See also", click "Online Content Settings...".
The Service Options dialog box appears with Online Content selected for you.
Remove the check from the checkbox which states "Search online content when connected" to the right of it.
Click "OK".
Now search Microsoft Word Help again and ALL of your results will be offline (local) help articles.
The above process also works with AND effects Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook,
Microsoft Access, Microsoft Publisher, etc.
If you do this in Microsoft Excel, follow the above process keeping in mind that anywhere it says "Word", you
replace it with "Excel". For example, "Microsoft Office Word Help" becomes "Microsoft Office Excel Help". The
same goes with PowerPoint, Outlook, Access, Publisher, and any others.
Just change Microsoft Word and the others (Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, Microsoft
Access, Microsoft Publisher, etc.) are changed with it.