Upgrade (Eval) to Full version
Open cmd (run as administrator), then use
Upgrade to STANDARD
dism /online /set-edition:serverstandard /productkey:VDYBN-27WPP-V4HQT-9VMD4-VMK7H /accepteula
Upgrade to DATACENTER
dism /online /set-edition:serverdatacenter /productkey:WX4NM-KYWYW-QJJR4-XV3QB-6VM33 /accepteula
重启后，找一个可用的vlk服务器，然后正常激活就可以了
资料链接：https://gist.github.com/nosmall/c13a2b31a2eee6817dbb0dd664ce2839