How to track changes in a document
To review a document, click the “REVIEW” tab and make sure that “Track Changes” is turned on. In this case the Track Changes have been locked down so they can’t be switched off without a password. Then you can start making your changes. All changes – deletions, insertions and formatting changes are tracked.
In the “Tracking” section on the “REVIEW” tab you can decide how your changes are displayed. In Word 2013 there is a new default view called “Simple Markup”. This view is less cluttered. It shows a red line where changes are made.
To see the changes just click on any red line to see the full markup. To collapse the view and go back to the Simple View click any red line again.