A family of Microsoft word processing software products for creating web, email, and print documents.
Thanks for clarifying.
Since Microsoft 365 is activated correctly in Word, this appears to be related to Editor in Edge rather than your Office activation.
Microsoft retired the separate Microsoft Editor browser extension for Edge on October 31, 2025. Its writing assistance features are now built directly into Microsoft Edge.
In Edge, go to Settings > Languages > Writing assistance and check that Microsoft Editor is selected/enabled there.
If you are clicking an old Editor extension or shortcut and it takes you to a Microsoft 365 purchase page, that may be the retired extension.
When you try to open Editor, are you clicking an Editor icon near the Edge address bar, or accessing it through Settings > Languages?
Thanks!