If the error persists due to cached credentials, you may need to clear the old license files.
Method 2: Clean Reinstallation Using the Office Deployment Tool (ODT)
The preview version of Office LTSC Professional Plus 2021 is intended to provide users with an early look at the new features and functionality. However, this preview version is time-limited and will eventually expire. When the preview version expires, you may encounter the error message "Microsoft Office LTSC Professional Plus 2021 preview has expired." This error prevents you from accessing Office applications, such as Word, Excel, PowerPoint, and Outlook.
Close all Office apps, navigate to C:\Users\ \AppData\Local\Microsoft\Office\16.0\Licensing and move any files inside this folder to a backup directory on your desktop, then restart Office to force a fresh activation token. To help find the quickest path forward, let me know: If the error persists due to cached credentials,
If you're still experiencing issues, use the Microsoft Office Uninstall Support Tool:
Often, the software code itself is identical to the final release, but the software application is trapped in "Preview" mode. You can force it to switch to standard licensing by overriding the key manually. Step 1: Input the Correct Product Key
If you are looking for a more modern baseline with improved security, you may want to consider upgrading to Office LTSC 2024 . When the preview version expires, you may encounter
How to Fix "Microsoft Office LTSC Professional Plus 2021 Preview Has Expired"
your computer and open an Office app to see if the error is gone. Method 4: Use the Microsoft Licensing Removal Tool
Navigate to the Office folder: cd "\Program Files\Microsoft Office\Office16" . You can force it to switch to standard
Save the file inside your Office2021 folder. Name it and ensure the "Save as type" dropdown is set to All Files ( . ) . Step 4: Run the Installation Command Open Command Prompt as an Administrator.
A one-time purchase retail build meant for consumers.
Are you setting this up for a or an organization/business network ?