Per‑user CALs are tracked here too, but actual usage is stored in Active Directory or a database file ( edb*.log in %SystemRoot%\System32\LServer ).
on the new Windows Server and activate it via the RD Licensing Manager. rds cal license registry key
(invoke-cimmethod -inputobject (get-ciminstance -namespace root/CIMV2/TerminalServices -classname Win32_TerminalServiceSetting) -methodname GetGracePeriodDays).DaysLeft Per‑user CALs are tracked here too, but actual
Right-click (mstsc.exe) and select Run as administrator . Per‑user CALs are tracked here too