A Windows command line tool to change your MAC address....how cool is that? Yes, yes, for those of use who come from a Linux world, being able to change your MAC address from the command line is something we've been able to do and have taken for granted. When you're in a Windows shop, though, changing your MAC address wasn't so easy...until now. Great tool. If you're a security geek or just incredibly paranoid, add this tool to your arsenal.