Contrary to popular belief Microsoft Word doesn’t have an automatic backup facility, features like Save Auto Recovery info (Tools > Options) merely save your document as a temporary file, which may get you out of trouble if Word or your PC crashes, and you know where to look for it, but it is not permanent and the recovery files are automatically deleted when Word, or the document are closed. There is no substitute for manually saving your work every few minutes, and the Ctrl + S keyboard shortcut is easy to remember, but Propellerhead has found a better way.
A small freeware utility (actually it’s a Word Macro) called SaveReminder can be set to remind you to do a manual Save every few minutes, or if you prefer, do it for you automatically. Simply download and extract the zip file into your Word Startup folder and the configuration menu will open the next time you launch Word. You will find the location of your Word Startup folder from Tools > Options > File Locations (On Windows XP it’s usually C:Documents and Settings<yourname>Application DataMicrosoftWordSTARTUP