I also recalled that ISE doesn't necessarily install everything for all families unless explicitly selected in the installation dialogs. As I haven't used ISE in years, I don't remember how to check which families are installed.
You do know that ISE 14.7 is out for installation on Win10 as a VM (or Linux)? If you've installed it on a Linux or a Win7 machine you are probably okay, but Win10 wouldn't be supported for ISE 14.4 to 14.7, which is why Xilinx has a linux VM to run under Win10.
This VM version might let you use a recent license or it might get around running on an unsupported OS.