When your machine is hung up (powered on but remote desktop not responding), remote reboot may get back up and running.
/m specifies the remote machine to shut down (your machine name)
/t 00 zero wait time
This works from any Windows machine where your account has access (usually in the same local domain or forest). Remote Administration and Windows Management Instrumentation firewall exceptions must also be enabled on the remote computer.
This is reposted from the original article at Tritone Consultants