Microsoft license products, as PSW or FTSL, activated via MAK (Multiple Activation Key) are not eligible for Microsoft Support.
„Windows Server is the cloud-ready operating system that supports your current workloads while introducing new technologies that make it easy to transition to cloud computing when you’re ready. A Client Access License (CAL) is required for each user or device that accesses Windows Server or Windows Datacenter server software. This license is for one user CAL.”