To fix Microsoft app update errors on macOS on any Macbook or iMac, ensure your macOS is up-to-date (at least Monterey).
Try clearing the Microsoft AutoUpdate (MAU) cache by deleting com.microsoft.autoupdate.fba in ~/Library/Caches, installing the latest MAU separately, or running a full uninstall and reinstall of Office. Check Privacy & Security settings for necessary app permissions and temporarily disable antivirus software if needed.
Common Solutions:
Update Your macOS:
- Open System Preferences (or System Settings).
- Go to Software Update and install any available macOS updates. Microsoft requires recent macOS versions (like Monterey or newer) for app updates.
Clear Microsoft AutoUpdate Cache:
- Open Finder and click Go > Go to Folder.
- Type ~/Library/Caches and press Enter.
- Find and delete the file com.microsoft.autoupdate.fba.
- Restart your Mac and try updating again.
Manually Update Microsoft AutoUpdate (MAU):
- If you see an error message, close the error window.
- Click the provided link to download the latest MAU installer.
- Run the downloaded package script to replace your existing AutoUpdater.
Check App Permissions (Privacy & Security):
- Go to System Settings > Privacy & Security.
- Ensure Microsoft apps have necessary permissions like Accessibility and Files and Folders.
Temporarily Disable Security Software:
- Antivirus or other security software can interfere with updates.
- Temporarily disable them and try updating again.
Perform a Clean Install:
- Use the Microsoft Office Removal Tool to completely uninstall Office.
- Restart your Mac.
- Download and install the latest version of Office.