Office for Mac Issues

How to Disable Automatically Update Styles in Word for Mac

Maira Mehtab Sep 20, 2026 868 views

Question details

Formatting a single paragraph unexpectedly changes the formatting of the entire document.

Product: Microsoft Word for Mac
Device & OS: Mac
Scenario: Editing document formatting or applying paragraph styles.
Observed behavior: Changing the format of one paragraph updates all other text in the document sharing that same style because the 'Automatically Update' option is enabled.

Before you start

Identify the specific text style (such as 'Normal' or 'Heading 1') that is unintentionally applying formatting changes to the rest of your document.

Solution 1Recommended

Disable 'Automatically Update' in the Modify Style Dialog

Turn off the automatic update setting for the affected style so that formatting changes only apply to the selected paragraph.

The 'Automatically Update' feature causes manual formatting changes to redefine the entire style. This setting is located in the Modify Style dialog, not in the standard Styles pane, and is only available for certain styles (like paragraph styles).

Open the Style Menu

Click on 'Format' in the top menu bar, then select 'Style' from the dropdown menu.

Select the Affected Style

In the Style dialog box, choose the specific style that is causing the issue and click the 'Modify' button.

Clear the Checkbox

Locate the 'Automatically Update' checkbox at the bottom of the Modify Style dialog box and uncheck it. Click 'OK' to save your changes.

Style Availability: The 'Automatically Update' option is not available for all styles; it primarily applies to Paragraph styles.

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Frequently Asked Questions

Why does changing one paragraph change my whole Word document?

This happens because the paragraph style you are using has the 'Automatically Update' feature enabled. When enabled, any manual formatting applied to that paragraph automatically redefines the style, applying the changes to all other text using the same style.

Where is the Automatically Update checkbox in Word for Mac?

You can find it by navigating to Format > Style in the top menu, selecting your style, and clicking Modify. The checkbox is located in the Modify Style dialog box, rather than in the standard Styles pane.

Can I disable 'Automatically Update' for all styles at once?

No, the 'Automatically Update' setting is managed on a per-style basis. You must modify each affected style individually through the Modify Style dialog to disable this feature.

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