Windows: slmgr /skms kms.8win.net
<br>
https://learn.microsoft.com/zh-cn/windows-server/get-started/kms-client-activation-keys
<br>
Office: cscript "C:\Program Files (x86)\Microsoft Office\Office16\OSPP.VBS" /sethst:kms.8win.net
<br>
https://learn.microsoft.com/zh-cn/DeployOffice/vlactivation/gvlks?redirectedfrom=MSDN