How to Revert to a Word Document After Saving
Microsoft Word contains an option to recover documents in case of error, but the option must be enabled beforehand. This is not an automatic feature of Word and it is best to prepare in advance in case you need to use this feature. Word will save a backup copy of your file to protect it from power failure or unauthorized changes. Your most recent changes may not be shown in the backup copy, but it prevents your work from being lost completely.
Setup Word to Save a Backup
Click the "Office" button in the upper left hand side in Microsoft Word.
Click "Word Options" at the bottom of the dialog box.
Click the "Advanced" tab at the left hand side of the box.
Scroll down to the "Save" selection.
Click the "Always Create Backup Copy" box.
Open Your Backup Copies
Click the "Office Button" in the upper left hand side of Microsoft Word. Click "Open".
Select the drop down menu next to the File Name box at the bottom of the dialog box and choose "All Files."
Open the document named Backup of and includes the name of the document you want to open, for example "Backup of Christmas List." Double-click the file.
Click the "Office" button and select "Save As" and change the name of the backup copy to work on the previous version.