If you're having trouble finding a product key or need assistance with activation, I recommend visiting Microsoft's support website or contacting their customer support directly. They can provide guidance on obtaining a legitimate product key and activating your copy of Office 2019.
Microsoft offers scaled-down versions of Word, Excel, PowerPoint, and OneNote for free through a web browser. Anyone with a free Microsoft account can access these tools via Office.com. It includes cloud storage via OneDrive and provides full compatibility with standard document formats without any installation risks. 2. Free Open-Source Office Suites microsoft office 2019 product key github
How to find product key for Microsoft Office already installed If you're having trouble finding a product key