If you don't need offline access, the web-based version of Microsoft Office is completely free and requires no activation.
The 30-day trial resets. This can be repeated up to 5-6 times (180 days). After that, the method fails. how to activate microsoft office without product key
It's worth noting that attempting to activate Office without a product key may violate Microsoft's terms of service and could potentially result in issues with the software or even legal consequences. If you don't need offline access, the web-based
In 2022, a security researcher discovered that Microsoft’s own Volume License version of Office 2021 LTSC (Long Term Servicing Channel) could be installed using a publicly available "generic volume license key" (GVLK). While the GVLK does not activate the software, it allows it to connect to any KMS server. Hackers exploited this by redirecting DNS traffic to rogue KMS servers. Microsoft patched this by requiring digitally signed KMS host certificates in mid-2023. After that, the method fails