I searched your posting for Office Regenerator not Word ... no problem. I am glad it is included, I was very impressed when I tested it.
Ignore my comment about Everything. I just downloaded a newer version and the problem appears to be fixed. Yahoo!
Here are some links to articles I've collected about File History. I am still at the bottom of the learning curve so I might as well just give you the same sources I am using. They are all in this Wiki. unfortunately I don't have much about the changes
implemented in Win 10
http://answers.microsoft.com/en-us/windows/wiki/windows_8-files/windows-881-total-backup-system-what-ms-forgot-to/06f16f5e-6e82-4332-b39e-7d674d8fea28?tm=1414346084295
http://www.davescomputertips.com/wp-content/uploads/2015/03/backup-now.jpg
Yes, I did abandon a thought. I started to type that comment about doc/docx extensions then tried it and was surprised to see that Word was still able to open the document properly. I was expecting it to be confused by the extension change.
The point I was suggesting was more about Planning/preparation rather than "prevention". "Accidents" happen. But if you plan and prepare for the "unexpected" before it happens, recovering from problem is much faster, easier and painless. One part of the
preparation is setting up a good backup system, including file history, but also regular periodic backups and OneDrive. Windows 8, and 10 have come up with a good mix of features that allows you to protect your programs and data files.
Where you put the new section is entirely up to you. It is your article. I would suggest you include a short reference new section in the introduction of the article just so they know it is there, at the end.
One of the "planning" steps I would identify is that for "high value" (to the user) documents they should increase the (oops, interrupted myself again). the number of discrete backup copies of the file they should have, with emphasis on having it on multiple
media and offsite (OneDrive).