How To Fix Microsoft Office Ltsc Professional Plus 2021 Preview Has Expired Here
Before installing a full version, you must completely remove the expired preview to avoid licensing conflicts. Control Panel Programs and Features Microsoft Office LTSC Professional Plus 2021 Preview in the list. Select it and click For a cleaner removal, you can use the Microsoft Support and Recovery Assistant (SaRA)
Sometimes, the system retains the expired preview key even after you have applied a new, valid license key. This causes a conflicting "Expired" banner to toggle back and forth with an "Activated" status. You can manually strip the old preview key out of Windows using the ospp.vbs script. Open .
, search for "Microsoft Office LTSC Professional Plus 2021 Preview," and select Deep Clean (Recommended) Microsoft Support and Recovery Assistant (SaRA) to ensure all registry entries and system files are wiped.
Fixing this issue requires moving away from the expired preview branch and transitioning to a supported, permanent version of Office. Why Did This Error Happen?
Since LTSC is a volume-licensed product, it requires specific deployment steps. Before installing a full version, you must completely
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April 24, 2026 | Category: Troubleshooting | Reading Time: 4 minutes
After cleaning the credentials and registry, you will need to reinstall Office and activate it again.
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Download and run the setup file to reinstall the applications.
To avoid seeing "Preview has expired" ever again:
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Microsoft Office LTSC Professional Plus 2021 Preview was a time-limited evaluation version intended for IT professionals and corporate testing. Unlike consumer trials, preview versions do not automatically convert to a paid subscription. This causes a conflicting "Expired" banner to toggle
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If you received Office from your employer or educational institution, you should in Phases 2 and 3. Instead, contact your organization's IT administrator or help desk and inform them of the error. They will be able to provide you with a proper, updated license or activation instructions specific to your organization's network.
To restore full functionality, you must transition from the expired preview channel to a licensed production version or an active Microsoft 365 subscription. Understanding Why the Error Occurs