A desktop publishing application from Microsoft that focuses on page layout and graphic design.
This appears to be an Office activation issue, not Publisher’s October 2026 retirement. Publisher should still have full functionality until October 1, 2026, and perpetual Publisher versions can continue to be installed and used afterward, although support ends in October 2026.
Please check File > Account in another Office app and sign in with the Microsoft account originally used to purchase or redeem Office. Then check Services & subscriptions, remove any conflicting Office installations, and run the Office activation troubleshooter.
If the product is no longer recognized, contact Microsoft Support with the original key and proof of purchase. In the meantime, back up the .pub files themselves through File Explorer. Once activation is restored, export the important files to PDF or another format before October 2026.
Please note that this is a user-to-user support forum. Moderators and contributors cannot access accounts or Microsoft’s back-end systems. We can only provide technical guidance on reported incidents, requests and ideas
Thank you for your understanding and time