A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hi KMen_MS,
Thank you for sharing the experience with us.
May I know how did you remove/uninstall Office 2019 Professional Plus?
I suggest you firstly open Control Panel>Programs>Programs and Features. In the programs list, check if Office 2019 Professional Plus appears. You may right click it and click Uninstall.
If issue still happens, I suggest you try the Office uninstall support tool.
You can get this tool from article below. (Option 2 - Completely uninstall Office with the uninstall support tool)
If Office 2019 Professional Plus is found by this tool, select it to uninstall it. Reboot computer and check the result.
If Office 2019 Professional Plus is not found by this tool, I suggest you select the product that is found(it should be your Office 365 desktop app), uninstall it completely. And then reinstall Office 365 apps, open Word and activate it, see if the original issue can be fixed.
If issue persists, to help you do further troubleshooting, I'd like to confirm information below:
1.Please share a screenshot about "Every time I open Word, it says that my MS Office 2019 Professional Plus is not activated".
2.In Word, please click File>Account, then capture a screenshot of the page.
Appreciate your time and effort on this issue.
Have a great day!
Best Regards,
Tina