Microsoft gives you one month of the full "Microsoft 365 Family" plan for free. When that expires, you can actually switch to a different "Free" tier for another month.
To activate Microsoft Office for free on a new device, the process generally depends on whether a pre-installed license came with your hardware or if you are eligible for specific free versions like those for students or the web. 1. Activate Pre-installed Office (Home & Student) activate office free new