For users with a still seeing this error, the Microsoft Support Online Repair tool is the safest first step before attempting CMD modifications.

Si todo va bien, esto deberĂ­a reactivar tu licencia.

: You may stop receiving critical security patches for Office. đź’ˇ Recommendation

The pop-up banner is gone, but you see “Non-commercial use” in the title bar. All features remain usable (no saving restrictions).

Nota: Aunque tengas Office 2019, la carpeta interna suele llamarse "Office16".

: This is a robust solution for users who have multiple licenses installed or need to clear a "trial" key before entering a genuine one. 3. Version Rollback via CMD