If you already have a volume license but the UI is failing, you can manually trigger activation using the Office Software Protection Platform script ( ospp.vbs ): Open as Administrator.
: Using activation scripts without a valid license is considered illegal and violates Microsoft's terms of service. activador para microsoft office ltsc professional plus 2021
Cómo Activar Microsoft Office LTSC Professional Plus 2021: Guía Completa If you already have a volume license but