https://learn.microsoft.com/en-us/windows-server/get-started/kms-client-activation-keys

在上方网址中找对应版本密钥

管理员运行 cmd

cscript.exe C:\Windows\System32\slmgr.vbs /ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx
cscript.exe slmgr.vbs /skms kms.ddns.net
cscript.exe slmgr.vbs /ato