This guide walks you through update & upgrade problems using Microsoft-supported steps first, with WPS only where it genuinely helps.
Problem Description: Install Error Updates Word
Hello, I am trying to install update 16.104 to Word, Excel, and Powerpoint on my MacBook Air OS Tahoe 26.2. I keep getting an install error message. I have tried turning off Malwarebytes for my Mac to see if that made a difference. It did not. Everything else on my computer is up to date.
Quick Answer for PowerPoint Setup on New Device
To resolve installation errors when updating Word, Excel, and PowerPoint on macOS, begin by verifying that your Mac has sufficient free disk space, as low storage commonly blocks update processes and corrupts temporary files.
Likely Causes Behind Update Root Factors
The Microsoft account or license context may not match the purchase or device.
Cached credentials, outdated builds, or damaged local components can trigger update & upgrade problems.
A file-specific corruption or add-in conflict can mimic a broader application failure.
Recommended Solution: Transferring PowerPoint License Safely
When to use this: Apply these steps when the symptoms match and you can access the relevant Microsoft account or administrator.
Open any Office application, navigate to the Help menu, and select Check for Updates to manually trigger Microsoft AutoUpdate.
If the error persists, open Disk Utility from the Utilities folder, select your primary drive, and run First Aid to repair potential permission or file system issues.
Should the problem continue, completely uninstall the current Office suite using the official removal tool and perform a fresh installation using the Microsoft support download page.
Restart your Mac after each major step to ensure system changes take effect properly, and temporarily disable third-party antivirus software that might interfere with the update installer.
Alternative Solutions for Secondary Installation Fixes
Retry the Microsoft-side steps after restarting the app and device.
Test the same action in a private browser session or a new blank file to isolate account vs file issues.
Run Quick Repair, then Online Repair from Programs and Features if the app still fails.
Capture exact error text and screenshots before contacting Microsoft Support or your administrator.
Working with WPS Office: WPS as a Local Alternative

WPS Office cannot replace Microsoft account, activation, or cloud fixes for this scenario. It remains one of the best free Microsoft Office-compatible alternatives for opening and editing local files.
Download and install WPS Office from the official website.
Open local Word, Excel, PowerPoint, or PDF files in the matching WPS app.
Save a working copy locally while Microsoft-side issues are resolved.
Return to Microsoft Office after the primary fix succeeds.
If you need a practical local workspace in the meantime, try WPS Office.
Prevention Tips for Keeping PowerPoint Stable Long Term
Keep one primary Microsoft account for subscriptions and Office sign-in.
Install updates for Office and Windows before retrying failed workflows.
Back up important files before repair, reset, or reinstall actions.
Buy Office from official channels and record the redemption account.
FAQs About PowerPoint Support Questions
Can WPS Office fix this update & upgrade problems issue directly? Only when the WPS steps match the formatting or file task. Account, activation, and cloud issues stay on the Microsoft side.
Should I reinstall PowerPoint before trying these steps? Not first. Confirm account, license, and the exact error before reinstalling.
What should I send to Microsoft Support? The affected account email, device type, Office version, exact error text, and screenshots with personal data hidden.




