Update & Upgrade Problems

How to Fix Microsoft AutoUpdate Errors on macOS Sequoia

Maira Mehtab Sep 22, 2026 868 views

Question details

The user is trying to resolve an issue where Microsoft AutoUpdate repeatedly fails to process updates on an iMac after upgrading to macOS Sequoia.

Product: Microsoft Office for Mac
Device & OS: macOS Sequoia (iMac)
Scenario: Updating Microsoft Office applications via the built-in Microsoft AutoUpdate tool.
Observed behavior: Microsoft AutoUpdate crashes or fails consistently during the update sequence, even after attempting to reinstall the updater itself.

Before you start

Ensure your iMac is fully connected to the internet and that you have administrator privileges, as you will need them to install the new updater package.

Solution 1Recommended

Manually Download and Install the Latest AutoUpdate Package

This solution bypasses the failing updater by directly downloading and installing the newest standalone release from Microsoft's official servers.

Sometimes the existing AutoUpdate installation becomes corrupted or incompatible with a major OS upgrade like macOS Sequoia. Downloading a fresh copy directly guarantees you are running the most stable version.

Download the package

Open your web browser and navigate to the official Microsoft download link: https://go.microsoft.com/fwlink/p/?linkid=830196 to download the latest AutoUpdate .pkg file.

Run the installer

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

Restart your Mac

Once the installation finishes, click the Apple menu and select Restart to ensure all system services recognize the new updater version.

Trigger AutoUpdate

Open any Microsoft Office application (such as Word or Excel), navigate to the Help menu at the top, and select Check for Updates to run the newly installed AutoUpdate tool.

Contacting Microsoft Support: If the error continues after this manual installation, it is recommended to contact Microsoft Support and provide them with the exact error details and codes displayed on your screen.

Free Microsoft Office alternative

Switch to WPS Office for a Seamless Mac Experience

Tired of dealing with constant Microsoft AutoUpdate errors? WPS Office is a lightweight, free alternative that offers seamless app updates and full compatibility with Microsoft Word, Excel, and PowerPoint files on macOS.

1. Download the app: Visit the official WPS Office website and download the Mac installer.
2. Install quickly: Drag the WPS Office icon to your Applications folder to finish setup instantly.
3. Open existing files: Right-click any of your existing Microsoft Office files and select 'Open with WPS Office' to continue working seamlessly.

Fully compatible with all major Microsoft Office formats (.docx, .xlsx, .pptx)Lightweight architecture ensures fast, hassle-free background updates without crashingFree to use with a familiar, user-friendly interface that requires zero learning curveAll-in-one suite combining Document, Spreadsheet, Presentation, and PDF tools in a single window

microsoft office alternative - wps office

Frequently Asked Questions

Why does Microsoft AutoUpdate keep failing on macOS Sequoia?

Update failures can occur due to corrupted updater cache files, network interruptions during background downloads, or unexpected compatibility glitches with the new macOS Sequoia environment.

Where is the Microsoft AutoUpdate application located on a Mac?

By default, the Microsoft AutoUpdate app is hidden in the system library. You can find it by navigating to Macintosh HD > Library > Application Support > Microsoft > MAU2.0.

Can I update my Mac Office apps without using AutoUpdate?

Yes, you can manually download the standalone update packages for Word, Excel, and PowerPoint directly from the official Microsoft Office release notes webpage for Mac.

Will reinstalling AutoUpdate delete my Word documents or Excel sheets?

No. Reinstalling or updating the Microsoft AutoUpdate tool will only replace the updater software itself. It will not affect your personal documents or your Office application preferences.

Installation & Activation