A family of Microsoft word processing software products for creating web, email, and print documents.
Have you tried launching Word in safe mode? Same problem?
Exactly the same problem as reported earlier. Check Google for "office 2013 help files not working" Last week there were 25,000,000 references to this. Today its 543,000,000.
Looks like the problem is growing.
I did find an explanation from Microsoft. Seems they removed the help files to save 3.2% of the file size of an installation. Not much to me with 6 terabytes of space on my drives, but I suppose it cuts their bandwidth costs. They will not be restored unless enough people complain.
I saw things like this coming when they gave a free update to Windows 10. Get that free and pay through the nose for everything else it seems. I hope I am wrong, but .....
Just for reference, does the very expensive replacement for office - Office 365 - have any help files, on or off line?
Have fun.
Howard