Step 1
Open your cmd prompt – run as administrator
Go to Office16 folder location
Run this command
for /f %x in ('dir /b ..\root\Licenses16\ProPlus2021VL_KMS*.xrm-ms') do cscript ospp.vbs /inslic:"..\root\Licenses16\%x"
after that
Run this
cscript ospp.vbs /setprt:1688
cscript ospp.vbs /unpkey:6F7TH >nul
cscript ospp.vbs /inpkey:FXYTK-NJJ8C-GB6DW-3DYQT-6F7TH
cscript ospp.vbs /sethst:e8.us.to
cscript ospp.vbs /act
You will see activation successful as
COMPUTER STATION 