Open Command Prompt as Administrator and run: setup.exe /configure yourconfigurationfile.xml
I can provide the specific or download links tailored to your situation.
Fixing the Microsoft Office LTSC Professional Plus 2021 Preview expiration issue requires transitioning from the pre-release software to a stable version. The "Preview" edition was a temporary testing build that lacks a permanent activation path now that the software is fully released. Why Your Office 2021 Preview Expired
If you have a valid license for the full version of Office LTSC 2021, follow these steps to install it using the Office Deployment Tool (ODT):
Are you comfortable using , or would you prefer a standard installer ?
Get it from the official Microsoft Download Center.
If your organization uses a Key Management Service, ensure you are connected to the company VPN to allow the software to "check in" with the activation server. To help you get back to work quickly, could you tell me: