Office Settings & Configuration

How to Fix Spell Check Not Working in Older Word 365 Documents

Tauseeq Magsi Oct 21, 2026 868 views

Question details

Users are unable to get Word 365 to flag spelling errors when editing or opening older documents.

How to Fix Spell Check Not Working in Older Word 365 Documents

Product: Microsoft Word 365
Device & OS: not provided
Scenario: Reviewing or editing legacy documents where the built-in spell checker completely ignores misspelled words.
Observed behavior: The spell check functions perfectly in newly created blank documents but fails to identify any spelling or grammatical errors in older files opened from a local disk or cloud storage.

Before you start

Verify that your Word 365 application's global spell check is working by creating a new blank document and typing a deliberately misspelled word.

Solution 1Recommended

Reset Proofing Language Settings for All Text

This is the most direct fix to clear the hidden formatting rule that instructs Word to ignore spelling and grammar for the document's text.

Older documents often carry embedded text formatting or language configurations that bypass the proofing tools. Clearing this setting document-wide will force Word to re-evaluate the text.

Select all text

Press Ctrl+A on your keyboard to highlight all the text in your document.

Open language settings

Navigate to the Review tab on the top ribbon, click on Language, and then select Set Proofing Language.

Clear the exclusion setting

In the dialog box, ensure the correct language is highlighted, uncheck the box labeled 'Do not check spelling or grammar', and click OK.

Reset Proofing Language Settings for All Text

Check applied settings: If the checkbox is filled with a solid square instead of a checkmark, click it twice until the box is completely empty.

Solution 2

Modify the Normal Style Language Format

Use this method if the default 'Normal' style of the older document has the spelling check disabled at the template level.

Solution 3

Check Language Settings via the Status Bar

A quick way to check if a specific misspelled word or isolated section of text is set to bypass the spell checker.

Free Microsoft Office alternative

Use WPS Office to Seamlessly Edit and Proofread Word Documents

If Microsoft Word 365 continues to struggle with embedded formatting bugs in legacy documents, consider switching to WPS Office. It is a free, lightweight alternative that offers excellent compatibility with older Microsoft Word formats while featuring a highly reliable built-in spell checker.

1. Download WPS Office: Visit the official WPS website and download the free version of WPS Office.
2. Open your older document: Launch WPS Writer and open the older Word document that was experiencing spell check issues.
3. Run spell check: Navigate to the Review tab and click Spell Check to reliably scan the entire document for errors.

Highly compatible with older Microsoft Word formats (.doc, .docx)Reliable built-in spell checker and proofing tools for all document typesFree, lightweight, and fast to load without heavy subscription feesFamiliar user interface requiring no learning curve for Office users

microsoft office alternative - wps office

Frequently Asked Questions

Why does spell check work in new Word documents but not older ones?

Older documents may have been saved with specific text or style formatting that explicitly tells Word to ignore spelling and grammar. This was often done to preserve original formatting or prevent foreign words from being flagged, and the setting persists when opened in Word 365.

How do I know if my text is set to ignore spelling?

Highlight the text in question, go to Review > Language > Set Proofing Language. If the 'Do not check spelling or grammar' box has a checkmark or a solid square inside it, the spell check is currently bypassed for that text.

Can pasting the text into another program fix the spell check issue?

Yes. Pasting the text into a plain text editor or another cloud-based word processor, and then pasting it back into Word as unformatted text, successfully strips out the embedded 'do not check' rule and restores normal spell checking.

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