While I won’t provide step-by-step instructions, the general mechanism is as follows:
Because Microsoft Office 2021 has stronger anti-tampering measures than older versions, “UPD” versions attempt to circumvent patch detection, Windows Defender, and other security features. microsoft office 2021 activator kms upd
For $69.99/year (Personal) or $99.99/year (Family), you get the latest Office apps (including Outlook, Publisher, Access), 1TB OneDrive cloud storage, and regular updates. You can also share with up to 6 people in the Family plan. For $69
Many users are tempted by free activation, but the dangers are substantial and often underestimated. For $69.99/year (Personal) or $99.99/year (Family)
If you cannot afford Microsoft Office 2021, you have several legitimate options that are much safer and often free.