Update & Upgrade Problems

How to Fix Word Update Error Banner on Office 2021 for Mac

Maira Mehtab Sep 21, 2026 869 views

Question details

The user needs to remove a persistent update error banner appearing in Microsoft Word on Office 2021 for Mac without necessarily forcing background update processes to run constantly.

Product: Microsoft Word
Device & OS: Mac
Scenario: Opening and using Microsoft Word when Microsoft AutoUpdate is disabled or failing to run in the background.
Observed behavior: Word displays a constant update error banner at the top of the application window, warning the user about update issues even though Office 2021 is a standalone product.

Before you start

Ensure you have saved all open documents and closed Microsoft Word before modifying the Microsoft AutoUpdate tool or removing background application files.

Solution 1Recommended

Reinstall and Enable Microsoft AutoUpdate

The recommended method to remove the banner and continue receiving essential security and bug fixes is to reinstall the latest version of Microsoft AutoUpdate.

Allowing Microsoft AutoUpdate to run in the background is the official way to keep the banner away. Disabling this updater may cause the warning to return in the future.

Download the AutoUpdate Package

Download the latest Microsoft AutoUpdate package directly from Microsoft by visiting https://go.microsoft.com/fwlink/p/?linkid=830196 in your web browser.

Run the Installer

Locate the downloaded installation file in your Downloads folder, double-click it, and follow the on-screen instructions to complete the setup.

Restart Your Mac

Once the installation finishes, restart your Mac to ensure the background update services are properly initialized and the banner disappears from Word.

Banner Removed: After restarting, launch Word. The update error banner should no longer appear, and security patches will install automatically.

Solution 2

Remove the Microsoft AutoUpdate Application Completely

If you strongly object to background processes and prefer manual control, you can delete the Microsoft AutoUpdate application, though this stops all future security updates.

Free Microsoft Office alternative

Enjoy a Distraction-Free Editing Experience with WPS Office

If you are tired of dealing with persistent error banners, forced background update processes, and constant notifications in Microsoft Office, consider switching to WPS Office. It provides a lightweight, user-friendly environment for your Mac without intrusive system modifications.

1. Download WPS Office: Visit the official WPS website and download the Mac installer.
2. Install and Launch: Drag the WPS Office icon to your Applications folder, then open it.
3. Open Your Documents: Seamlessly open your existing Word (.docx) files and continue editing without annoying banners.

Lightweight application that doesn't force heavy background processesFully compatible with Microsoft Word (.docx), Excel (.xlsx), and PowerPoint formatsClean, distraction-free interface with no intrusive update error bannersFree to use with comprehensive document editing features for Mac users

microsoft office alternative - wps office

Frequently Asked Questions

Why is Office 2021 showing an update error if it is a standalone version?

Even standalone versions like Office 2021 receive periodic security patches and bug fixes. When Microsoft AutoUpdate fails to run or is disabled, Word detects that it cannot check for these security updates and displays the error banner.

Will I lose access to Word if I delete the MAU2.0 folder?

No, deleting the Microsoft AutoUpdate (MAU2.0) folder will not delete Word or prevent you from creating and editing documents. However, it will stop all automated security and stability updates.

Can I manually update Word without using Microsoft AutoUpdate?

Yes, you can manually download standalone update packages for Office for Mac directly from the official Microsoft release history page, bypassing the need for the background AutoUpdate app.

Installation & Activation