Since there is no remote desktop license server available to license (Final Solution)

Run Power Shelli as administrator and type the following commands one by one. (REPLACE YOUR OWN SERVER NAME INSTEAD OF THE COMPUTER NAME)

Server 2012 Solution because there is no remote desktop license server available to provide licenses

$ obj = gwmi -namespace “Root/CIMV2/TerminalServices” Win32_TerminalServiceSetting
$ obj.ChangeMode (2)
$ obj.SetSpecifiedLicenseServerList("COMPUTER NAME")
$ obj.GetSpecifiedLicenseServerList()

Go to "Control Panel/System and Security/System" to find your computer name.