<p>I have a Windows XP SP2 virtual machine which can be accessed via VNC. It's also running Deep Freeze so there should be no problem in forcing it to reboot. I am looking for a way to force the operating system to reboot instead of shutting down or completely remove the ability to shut down the machine using software applications (such as the usual way from the start menu, the shutdown program or other custom programs).</p>

<p>Thank you,
Tom</p>

Try this:
```
shutdown /r /t 1 /f
```
Alex