When Word stops working as expected, start with the shortest official checks before you reinstall anything.
Problem Description: Word Stop Applying Formatting
When creating a document in Word, I've had an issue where whenever I make some kind of formatting to one line in a numbered or bulleted list (like making the text bold or underlined or changing the list indents), Word will automatically apply that formatting to all lines in the document. For example, I made this example list in a blank Word document.  I tried to strikethrough just Sublist 2 and Word did the following automatic formatting:  I then had to hit the "Undo" button 2 times to get the actual formatting I was trying to do  This was after removing all autoformat settings. I've had this issue in all my Word documents since using a new work laptop. This is on the Word desktop app. Please tell me how to prevent this from happening.
Quick Answer for Word Setup on New Device
To stop Word from applying formatting made to one line to every line in the document, select some of the affected text and look at the Styles Gallery.
Likely Causes Behind Formatting Issues Root Factors
The Microsoft account or license context may not match the purchase or device.
Cached credentials, outdated builds, or damaged local components can trigger formatting issues.
A file-specific corruption or add-in conflict can mimic a broader application failure.
Recommended Solution: Installing Word on a New PC
When to use this: Apply these steps when the symptoms match and you can access the relevant Microsoft account or administrator.
Right-click on whichever style is selected and choose Modify.
In the Modify Style dialog, uncheck the "Automatically update" option, then click OK.
Alternative Solutions for Secondary Document Fixes
Retry the Microsoft-side steps after restarting the app and device.
Test the same action in a private browser session or a new blank file to isolate account vs file issues.
Capture exact error text and screenshots before contacting Microsoft Support or your administrator.
Working with WPS Office: WPS as a Local Alternative

WPS Office cannot replace Microsoft account, activation, or cloud fixes for this scenario. It remains one of the best free Microsoft Office-compatible alternatives for opening and editing local files.
Download and install WPS Office from the official website.
Open local Word, Excel, PowerPoint, or PDF files in the matching WPS app.
Save a working copy locally while Microsoft-side issues are resolved.
Return to Microsoft Office after the primary fix succeeds.
If you need a practical local workspace in the meantime, try WPS Office.
Prevention Tips for Keeping Word Stable Long Term
Keep one primary Microsoft account for subscriptions and Office sign-in.
Install updates for Office and Windows before retrying failed workflows.
Back up important files before repair, reset, or reinstall actions.
Work on copies and keep version history enabled when available.
FAQs About Word Support Questions
Can WPS Office fix this formatting issues issue directly? Only when the WPS steps match the formatting or file task. Account, activation, and cloud issues stay on the Microsoft side.
Should I reinstall Word before trying these steps? Not first. Confirm account, license, and the exact error before reinstalling.
What should I send to Microsoft Support? The affected account email, device type, Office version, exact error text, and screenshots with personal data hidden.




