I had activated Office with a product key that came with my laptop, and it worked fine for months. Then one day, out of nowhere, Office said my activation was invalid. I tried re-entering the key, but nothing worked. After hours of frustration, I stumbled upon kms full , where they explained that some pre-installed Office
https://teamgroupname.com/the-importance-of-purchasing-genuine-microsoft-office-software/ versions come with temporary activation. Their KMS activation method saved me from spending money on a new license.
