Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello, thank you for reaching out to Microsoft Q&A.
It is unusual that you are getting the “Subscribe to Office 365” kind of pop-up every time you turn on your laptop.
Could you please check which app is triggering the pop-up? Since Office apps no longer start automatically, it is unusual that you are seeing this screen at startup. You should normally see it only when you open an Office application. If the pop-up appears immediately after you sign in to your computer, click on the link and check where it redirects you.
Meanwhile, if the pop-up redirects you to the Microsoft website, it is possible that it is being triggered by an Office app.
You can open any Office app, such as Word, then go to File > Options > Trust Center > Trust Center Settings > Privacy Options > Privacy Settings. Turn off the “All connected experiences” checkbox and click OK.
Then restart your computer.
If you are still having issues, you can try repairing the Office applications once (perform an Online Repair).
Let me know if you still need more help.