The license keys are 100% genuine issued directly from Microsoft.
Please note: Please follow this official Instruction to register your Office Professional 2019 product.
1. Once you received your Order, please find your product key.
2. Open your browser and go to Microsoft Office Website to Download Software.
3. Download, and Install Product.
4. Select your preferred country and language.
5. Activate you product Online
6. Sign in with your Microsoft Account