Microsoft Word documents can be lost in certain situations and you can find here some methods that you can use to try to recover the lost document.

If you have saved your document, you may lose only the changes that you made since the last save. Remember that some lost documents may not be recoverable.

Method 1: Search for the original document

Method 2: Search for Word backup files

Method 3: Search for AutoRecover files

Method 4: Search for temporary files

The details on how to use this methods can be found on Microsoft's site.