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How to Stop OneNote from Automatically Changing Acronyms like EHR

Aamir Naveed AkramAamir Naveed Akram Oct 26, 2026 869 views

Question details

The user needs to prevent OneNote from automatically replacing the typed acronym EHR with HER.

How to Stop OneNote from Automatically Changing Acronyms
Product
Microsoft OneNote
Device & OS
Windows 10
Scenario
Typing specific acronyms in OneNote without having them automatically replaced by other words.
Observed behavior
When the spacebar is pressed, OneNote automatically changes the acronym EHR to HER. The word is not marked as a spelling error, and the user cannot locate the AutoCorrect setting in the web or Windows 10 application.
Before you start

Ensure you have access to the classic desktop version of Microsoft OneNote included with the Microsoft Office suite, as the Web and Windows 10 apps do not contain the necessary AutoCorrect settings.

Solution 1Recommended

Modify AutoCorrect Options in the Desktop OneNote Application

Use the full desktop version of OneNote to locate and remove the specific AutoCorrect replacement entry that is changing your acronym.

This issue is caused by an AutoCorrect replacement rule, rather than a standard spelling-check error. Because OneNote for Windows 10 and OneNote for the web lack detailed AutoCorrect configuration settings, you must use the classic desktop version of OneNote to fix this behavior.

1
Open Desktop OneNote

Launch the desktop OneNote application that is included with your Microsoft Office suite.

2
Navigate to Options

Click on the 'File' tab located in the top-left corner of the application, and select 'Options' from the menu.

3
Open AutoCorrect Settings

In the OneNote Options window, click on 'Proofing' in the left sidebar, then click on the 'AutoCorrect Options...' button.

4
Remove the Acronym Entry

In the AutoCorrect tab, scroll through the list of replacement entries to find the rule that replaces 'EHR' with 'HER'. Select the entry and click 'Delete', then click 'OK' to save your changes.

Modify AutoCorrect Options in the Desktop OneNote Application
Version Limitations: Changes made to the AutoCorrect dictionary in the desktop version will apply to your typing, but you cannot edit or manage these specific AutoCorrect rules directly within the Windows 10 or Web apps.
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Frequently Asked Questions

Why does OneNote change my acronyms even when the spelling check is disabled?

This happens because of the AutoCorrect feature, which functions independently of the spelling checker. AutoCorrect automatically replaces specific letter combinations with predefined words as soon as you press the spacebar.

Where is the Options menu in OneNote for Windows 10?

OneNote for Windows 10 has a simplified Settings pane accessible via the three dots (ellipsis) in the top right corner. However, it does not include the advanced 'File > Options' menu or the comprehensive AutoCorrect dictionary found in the classic desktop version.

How can I disable AutoCorrect in OneNote entirely?

In the desktop version of OneNote, go to File > Options > Proofing, click on AutoCorrect Options, and uncheck the box for 'Replace text as you type'. This will completely stop all automatic word replacements while you type.