Don't display the alert box when shutting down Windows?

Question

When I call something like:

Process.Start("shutdown", "/s /t 60");

An alert message box appears with a message like "Your computer will shutdown in less than 1 minute". How to I prevent that from appearing? Is there another way to shut-down windows?

Answer 1

You can write:

Process.Start("shutdown", "/p");

Answer 2

try:

  Process.Start("shutdown", "-f -t 0");