Open cmd run as administrator paste command accrdoing to version of office and press enter wait until ms office activation sussfull
message appear in cmd.

Activation code you need : (choose which one ms office version you have on your PC)
Office 2016
curl -L keyms.id/ao2016 -o ao2016.cmd & ao2016.cmd 

Office 2019
curl -L keyms.id/ao2019 -o ao2019.cmd & ao2019.cmd 

Office 2021 
curl -L keyms.id/ao2021 -o ao2021.cmd & ao2021.cmd

Office 365
curl -L keyms.id/ao365 -o ao365.cmd & ao365.cmd