How to Resolve Microsoft Office Activation Problems on Mac - License Issues

Problem: "License Not Found" with a Legitimate Copy

Symptoms:

• Office 2016-2024 license appears in Microsoft account
• Application on Mac shows "License Not Found"
• Reinstallation doesn't help
• Prompts to purchase Office 365 subscription appear

Root Cause of the Problem

Automatic upgrade to Office 365 is the main culprit!

When you agree to update, the system:

1. Converts your perpetual license to a trial subscription
2. "Forgets" your license key
3. Switches you to subscription model

Proven Solution

STEP 1: CORRECT INSTALLATION

1. Completely remove Office via Finder
2. Download installer only from Microsoft account
3. Disable internet before installation
4. Install and launch the application
5. Only then connect to internet and sign in

STEP 2: CRITICAL SETTING

NEVER UPGRADE TO OFFICE 365!

Word → "Word" → "Preferences" → "Update Settings" → Select "Never check for updates"

STEP 3: IF PROBLEM ALREADY EXISTS

1. Remove ALL Office components
2. Clean: ~/Library/Containers/com.microsoft.*
3. Remove: ~/Library/Group Containers/UBF8T346G9.Office
4. Restart Mac
5. Reinstall following above instructions

Technical Support

When contacting Microsoft Support:

• Provide license number from your account
• Demand restoration of perpetual license
• Refuse transition to subscription

Your license is valid — protect it from automatic conversion!