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How to Fix Office 2021 for Mac Activation with Multiple Licenses
Question details
The user needs to activate Office 2021 Home & Business on a Mac, but all available licenses in their Microsoft account erroneously report being in use on other devices.
- Product
- Microsoft Office 2021 Home & Business
- Device & OS
- macOS
- Scenario
- Activating a new installation of Office 2021 for Mac using a Microsoft account with multiple associated licenses.
- Observed behavior
- Despite using the License Removal tool and reinstalling, all licenses indicate they are already used on another device. Furthermore, the Microsoft account page does not show which devices hold the active licenses.
Ensure you are using the exact Microsoft account credentials originally used to redeem your Office 2021 Home & Business product keys, and confirm your Mac is connected to a stable internet connection.
Run the License Removal Tool and Re-activate
Clear existing or corrupted license files from your Mac to attempt a clean activation process.
Hidden license files from previous installations or Office 365 trials can interfere with activating a new Office 2021 Home & Business license.
Visit the official Microsoft support site and download the Office License Removal Tool for Mac.
Open the downloaded .pkg file and follow the on-screen prompts to remove all Office license files from your Mac.
Restart your Mac. Open Microsoft Word or Excel, click 'Get Started', and sign in with the Microsoft account associated with your Office 2021 licenses.
Contact Microsoft Support for Backend License Reset
If local troubleshooting fails and all licenses show as used, Microsoft must manually release the activations from their servers.
Use WPS Office as a Hassle-Free Alternative for Mac
Avoid complex license management, activation limits, and troubleshooting errors. WPS Office is a highly compatible, free, and lightweight alternative to Microsoft Office that works seamlessly on your Mac.
- 1. Download WPS Office for Mac: Visit the official WPS website and click the free download button for Mac.
- 2. Install the application: Open the downloaded installer and drag the WPS Office icon into your Applications folder.
- 3. Start working immediately: Launch WPS Office and begin creating or editing your documents without worrying about activation failures.
Frequently Asked Questions
Can I activate Office 2021 for Mac by manually entering my product key?
No, Office for Mac requires you to sign in with the Microsoft account that was used to originally redeem the product key. There is no direct input field for a 25-character key during the Mac installation.
Why doesn't my Microsoft account show which Macs are using my Office 2021 licenses?
While the Services & subscriptions page shows the licenses you own, Microsoft's interface for perpetual Office licenses (like Home & Business) often does not provide a breakdown of specific device names or management options compared to subscription-based Microsoft 365 accounts.
What should I do if the Mac License Removal Tool doesn't fix the 'already in use' error?
If the removal tool and a clean reinstall do not resolve the issue, the licenses are locked on Microsoft's activation servers. You will need to contact Microsoft Support directly so they can review your account and manually release the licenses.
