To install KVM on Windows run the following command, which will download and run a script that install KVM for the current user (requires admin privileges)
@powershell -NoProfile -ExecutionPolicy unrestricted -Command "iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/aspnet/Home/master/kvminstall.ps1'))"
For OS X & Linux: https://github.com/aspnet/Home