Fix: Word Spell Check Not Working

The Problem

Spell check isn’t working—you’re not seeing red squiggles under misspelled words, or the spell-check feature is grayed out and unavailable. You need spell check enabled to catch errors before sharing documents.

Quick Fix

Enable spell check immediately:

1. Go to File > Options
2. Click “Proofing” on the left
3. Check the box for “Check spelling as you type”
4. Click OK
5. Red spelling error underlines should now appear

Step-by-Step Solution

Method 1: Enable Check Spelling as You Type

This is the main setting that enables spell checking.

Step 1: Click File in the ribbon.

Step 2: Click “Options” at the bottom.

Step 3: The Word Options dialog opens.

Step 4: Click “Proofing” on the left side menu.

Step 5: You’re now in the Proofing settings.

Step 6: Look for the checkbox labeled “Check spelling as you type” or similar.

Step 7: If the box is unchecked, click it to enable spell checking.

Step 8: If the option is completely grayed out (disabled), skip to Method 5.

Step 9: Also look for “Mark grammar errors as you type”—you may want this checked too.

Step 10: Click OK at the bottom to apply these changes.

Step 11: Return to your document. Red squiggles should now appear under misspelled words.

Method 2: Verify Document Language Setting

Spell check won’t work if the document language is set incorrectly.

Step 1: In your document, select a few words (Ctrl+A to select all).

Step 2: Go to Review tab.

Step 3: Look for “Language” button or “Set Proofing Language.”

Step 4: Click it to see the current language setting.

Step 5: The dialog shows which language Word uses for spell-checking this document.

Step 6: If it says “Not specified,” you must set a language.

Step 7: Select your document language (e.g., English - United States, English - United Kingdom).

Step 8: Click OK.

Step 9: Spell check now uses the correct dictionary for your language.

Method 3: Turn Off “Hide Spelling Errors” if Enabled

Some users accidentally hide spelling errors instead of disabling spell check.

Step 1: Go to File > Options > Proofing.

Step 2: Look for a checkbox that says “Hide spelling errors” or “Hide spelling errors in this document.”

Step 3: If this is checked, uncheck it to show spelling errors again.

Step 4: Click OK.

Step 5: Red underlines now appear under misspelled words.

Method 4: Exclude Document from Spell Checking (and Re-Enable)

Sometimes a specific document gets excluded from spell checking.

Step 1: Go to File > Options > Proofing.

Step 2: Look for an option that says “Exceptions for [filename]” or similar.

Step 3: Look for a checkbox like “Hide spelling errors in this document only.”

Step 4: If this is checked, uncheck it.

Step 5: Click OK.

Step 6: Spell checking is now enabled for this document.

Method 5: Repair Office Installation

If spell-check options are grayed out or unavailable, Office installation is corrupted.

Step 1: Close Word completely.

Step 2: Open Control Panel (Windows).

Step 3: Click “Programs and Features.”

Step 4: Find “Microsoft Office” in the list.

Step 5: Click it to select it.

Step 6: Click “Change” at the top.

Step 7: Select “Quick Repair.”

Step 8: Click Repair and wait for it to complete.

Step 9: If Quick Repair doesn’t work, repeat steps 1-6 but select “Online Repair” instead.

Step 10: Online Repair takes longer but fixes deeper corruption.

Step 11: Restart your computer.

Step 12: Open Word and test spell check again.

Method 6: Check Proofing Language Availability

Sometimes spell-check languages aren’t installed.

Step 1: Go to File > Options > Proofing.

Step 2: Click “Download and Install Proofing Tools.”

Step 3: This opens Microsoft’s proofing tools page.

Step 4: Download and install the language version you need.

Step 5: Return to Word and test spell check.

Why This Happens

Spell check disabled: Users sometimes turn off spell checking to reduce distraction, then forget it’s off.

Wrong document language: If the document language doesn’t match the actual language used, spell check won’t work properly.

Hidden errors: Users can set documents to hide spelling errors, which appears as if spell check isn’t working.

Document-specific exclusion: Word can exclude individual documents from spell checking.

Office corruption: Corrupted installation files prevent spell-check features from loading.

Missing proofing tools: Some Office installations don’t include all language proofing tools.

How to Prevent It

Verify settings regularly: Check your spell-check settings weekly if you work with documents from different sources.

Set document language immediately: When opening a new document, set the proofing language right away.

Use standard dictionaries: Stick with standard language dictionaries rather than custom ones that might have issues.

Keep Office updated: Regular updates fix spell-check bugs and improve dictionary accuracy.

Review proofing settings: Include reviewing spell-check settings as part of your document setup process.

Still Not Working?

Run Diagnostics: Go to File > Account > About Word and look for a “Diagnostics” or “Run Diagnostics” button.

Check for add-in conflicts: Some add-ins interfere with spell checking. Disable add-ins one by one to identify the culprit (File > Options > Add-ins).

Reset Word settings: Rename the Word startup folder to reset all custom settings. Location: C:\Users[YourName]\AppData\Roaming\Microsoft\Word\STARTUP (for Windows).

Uninstall and reinstall Office: As a last resort, completely uninstall Office, restart your computer, then reinstall it fresh.

Check dictionary file integrity: Some third-party antivirus software interferes with dictionary files. Try temporarily disabling antivirus to test.

Further Reading

• Microsoft Support — Word — Official Microsoft resource for troubleshooting Word features including spell check issues.
• Microsoft Office Help — Comprehensive help articles on Office applications, useful for fixing proofing and language settings in Word.
• Microsoft Learn — Office — Detailed technical documentation on Office apps, including configuration of proofing tools and language options.