A: Only via web apps — no desktop activation possible.
A: Office enters reduced functionality mode (view only, no editing). Summary Table — Activation Paths | Scenario | Action Required | |----------|----------------| | New subscription bought online | Sign in to Office with that Microsoft account | | Product key card | Enter key at office.com/setup | | Work/school account | Admin assigns license → sign in | | New PC with pre-installed Office | Open Office → accept license → already activated | | Reinstall on same PC | Sign in → auto-activates | | Reinstall on new PC | Deactivate old → sign in on new | If you need help with a specific activation error code or a particular license type , let me know and I can narrow down the troubleshooting steps. microsoft office 365 activate
A: Yes — but sign in with the same Microsoft account usually restores license. A: Only via web apps — no desktop activation possible