Windows Setup Fix for Non-Administrator Users

I've resolved an issue where non-administrator users could not use the scripts to setup KVM.

I encountered an issue where Windows cannot access the script files if they're not in an administrator owned folder. 

I've modified the script so that it only install to the user's home folder by default. If a user wants to install it globally, they can use the -g or -global switch to install it there, and only there.