Just find and replace it in the document. Below I will demonstrate the detailed operation steps:

(Computer model: Lenovo rescuer Blade 7000K, system version: win 10, version: Office Word 20 19)

1, let's open a Word document file first, and we can see that there are two repeated paragraphs in the figure:

2. Press and hold the keyboard shortcut Ctrl+A to select all document contents:

3. Press and hold the keyboard shortcut Ctrl+H to open the Find and Replace window.

4. Then click on the text box to find the content, and enter the content to be checked in the text box. It should be noted that the content entered is in double quotation marks, but the double quotation marks are not included, otherwise you will find an error.

5. Click the text box replaced with, enter "1 \ 2", click the small box, and then tick it with the following wildcards:

6. Finally, click the "Replace All" button continuously until a dialog box pops up, which shows "Word has completed document search and replaced 0 locations:

The above is all the steps to solve the problem of duplicate checking in word documents. Come and try what you have learned ~ ~