Microsoft Office 2019 will only run on Windows 10, it's not compatible with Windows 7 or Windows 8.
To successfully complete the activation Task. We recommend that you uninstall any older versions of Office before installing MS Office 2019. The following links describe how to Uninstall Office from a PC or Uninstall Office from a Mac.
Get things done with Office 2019
For customers who aren't ready for the cloud, Office 2019 is the next on-premises version of Word, Excel, PowerPoint, Outlook, Project, Visio, Access, and Publisher.
Create with ease
Create presentations, data models, and reports with tools and capabilities like PowerPoint Morph, new chart types in Excel, and improved inking across apps.
Simplify your work
Manage your time, email, and contacts more easily with features like Focused Inbox, travel and delivery summary cards in Outlook, and Focus Mode in Word.