Comparing documents for differences is a tedious process, but you can check for difference between 2 word document easily.
Follow this tutorial to see how it can be done.
Step 1. Have 2 Word Documents (.doc, .docx).
Step2. Goto Review –> Compare ( Select “Compare”, Compare 2 versions of document. )
provide the path to both the documents and press “OK”.
You will show the difference between the documents alongside with the original documents in small panes.The differences will be shown as striked of lines, in the middle pane, making it easy for viewing the difference.
See below Image for example.