Credit: music by Jay Someday
Activate Windows Server
Activate Server 2016
Upgrade Server 2016 to 2019
Install RDS User CALs
CAL problem solve
If you need to buy a Windows Server product license key: shop.recycled-software.com/product-category/windows-server
Or Server RDS CALs: shop.recycled-software.com/product-category/rds-cal