Fix Microsoft Word Capitalizing the First Letter of Words Automatically
Question details
Stop Microsoft Word from unexpectedly capitalizing the first letter of words, particularly the lowercase 'i', during typing.

- Product
- Microsoft Word
- Device & OS
- not provided
- Scenario
- Typing documents in Microsoft Word, potentially affecting files stored in Microsoft Teams or occurring after a Microsoft 365 update.
- Observed behavior
- Word automatically changes the first letter of a word (like lowercase 'i') to a capital letter against the user's intent.
Save your current document and close all running instances of Microsoft Word to ensure any session resets or setting changes are applied correctly.
Restart Microsoft Word in Safe Mode
Running Word in Safe Mode bypasses add-ins and temporary glitches, often resolving erratic AutoCorrect behaviors seamlessly.
Sometimes, recent Microsoft 365 updates or third-party add-ins can cause temporary glitches in Word's typing functions. Starting the application in Safe Mode helps determine if an add-in or a corrupt session is causing the unexpected capitalization.
Press the Windows key + R on your keyboard to open the Run dialog box.
Type 'winword /safe' into the input field and press Enter or click OK.
Once Word opens in Safe Mode, create a new document or open the affected file to test if the capitalization issue persists.
Close Word completely and restart it normally. In many cases, this simple reset permanently resolves the auto-capitalization glitch.

Disable AutoCorrect Capitalization Settings
Manually disable the specific AutoCorrect feature responsible for capitalizing the first letters of sentences or specific words.
Experience Glitch-Free Word Processing with WPS Office
Tired of unexpected AutoCorrect glitches and formatting issues in Microsoft Word? Switch to WPS Office, a free, lightweight, and highly compatible alternative that gives you complete control over your document formatting with a familiar user interface.
- 1. Download WPS Office: Visit the official WPS website and download the free installation package for your operating system.
- 2. Open Your Word Files: Launch WPS Writer, click 'Open', and seamlessly load your existing .docx files without losing any formatting.
- 3. Customize Your Settings: Enjoy stable, predictable typing. You can easily tweak your AutoCorrect preferences under Menu > Options to suit your exact needs.

Frequently Asked Questions
Why does Microsoft Word capitalize the letter 'i' randomly?
This usually occurs due to Word's built-in AutoCorrect feature, which automatically capitalizes the standalone letter 'i' as a pronoun. It can also happen due to a temporary glitch or corrupted session following a Microsoft 365 update.
Will starting Word in Safe Mode delete my custom settings?
No, Safe Mode only temporarily disables add-ins and custom configurations to help identify problems. Your normal settings and templates will return intact when you restart Word normally.
How do I stop Word from capitalizing the first word of every line?
You can disable this default behavior by going to File > Options > Proofing > AutoCorrect Options, and unchecking the 'Capitalize first letter of sentences' and 'Capitalize first letter of table cells' options.
Can third-party add-ins cause unexpected formatting changes in Word?
Yes, outdated or conflicting third-party add-ins can interfere with Word's native AutoCorrect functions and clipboard management, leading to erratic behavior like unwanted capitalization or formatting shifts.




