How to Fix Microsoft Word Duplicating Each Line of Text
Question details
The user is experiencing a bug in Microsoft Word where every line of text they type is immediately duplicated on a second line, and attempting to delete the duplicate also deletes the original text.
- Product
- Microsoft Word
- Device & OS
- not provided
- Scenario
- Typing and editing text within a document
- Observed behavior
- A second identical line of text appears automatically while typing. Deleting the duplicated line simultaneously deletes the original line of text.
Before attempting any troubleshooting, save your document and restart Microsoft Word to verify if the problem is just a temporary software glitch.
Check Print Preview to Identify Display Issues
Use the Print Preview feature to determine whether the duplication is a visual rendering glitch or actually embedded in the document's content.
Sometimes graphics card drivers or Word's display engine can create a visual 'echo' of your text on the screen. If the text does not appear duplicated in the print preview, your document content is safe, and the issue lies with how Word is rendering the page.
Click on the 'File' tab located in the top-left corner of the Microsoft Word ribbon.
Click on 'Print' in the left-hand menu to open the document preview pane.
Look closely at the document preview. If the duplicated lines do not appear here, the issue is purely a display problem. Restarting your computer or updating your display drivers may resolve it.
Troubleshoot Formatting, Field Codes, and Track Changes
Address underlying document settings like hidden field codes, unresolved track changes, or formatting conflicts that can cause text to duplicate.
Run a Repair on Your Office Installation
If the problem persists across all new and existing documents, repairing the Microsoft Office suite can fix corrupted application files causing the glitch.
Switch to WPS Office for Bug-Free Document Editing
If Microsoft Word continues to duplicate lines of text or requires constant troubleshooting, consider switching to WPS Office. It provides a lightweight, highly compatible, and free alternative for all your word processing needs without the rendering glitches.
- 1. Download and Install WPS Office: Visit the official WPS website, download the free installation package, and follow the simple on-screen instructions.
- 2. Open WPS Writer: Launch the WPS Office suite and click on 'Docs' to open the built-in word processor.
- 3. Load Your Document: Drag and drop your problematic .docx file into the application to continue editing it seamlessly without text duplication.

Frequently Asked Questions
Why does deleting a duplicate line in Word also delete the original text?
This happens because the duplicate line is usually a visual 'echo' or a linked field code rather than an independent string of text. When you delete the duplicate, Word processes the deletion on the actual underlying text block, removing both.
What does pressing Alt+F9 do in Microsoft Word?
Pressing Alt+F9 toggles the display of field codes in your document. It switches the view between showing the underlying programming code (like hyperlinks or mail merge fields) and the actual formatted result, helping you spot corrupted linking that duplicates text.
How can I tell if the text duplication is just a display glitch?
You can verify this by navigating to File > Print to check the Print Preview. If the duplicate lines are missing in the print preview, the issue is a display rendering problem with your graphics driver or Word interface, rather than corrupted document content.




