Task Scheduler : Create Shut Down PC Automatically Task

I have created a task in task scheduler but now i wanted to make changes for it .How to do it,cause i can't see the task i created in the task scheduler menu.
Help needed .......

Thanks shawn i got that working ,
But during shutdown the computer went to the log on screen and was asking for password there.Is there any way i can disable that option ? I have chosen a option to shutdown when the pc is idle for more then an hour.
Because at night sometimes i leave my laptop switch on and i want it to shut down automatically and not ask for the password .

I was looking on the Microsoft website to find out about the arguments entered in the tutorial.

Am a Mac user, but have a Windows 7 computer connected to an imagesetter at a daily newspaper.
I have set the BIOS to start up every day, but need a task to run a shut down on the weekends, when we aren't here to shut it down manually.
I wanted to check out the /s and /f before entering this on the computer in the task manager - I am cautious when entering something I don't understanD

You had entered /s and /f.
But the Microsoft website chart shows -s as shutdown, and I can't find a -f argument explanation on their site at all.

Here is there sampling of their chart
Shut down
shutdown
-s
Restart
shutdown
-r
Log off
shutdown
-l


Can you tell me:

1) Why the you have /s and they have -s?
Does it matter which you use?

2) If -s or /s means shutdown,
What does -f or /f stand for.

Thank you
Bob

So the /s means the shutdown command and the /f is to proceed with shutdown - would this be the equivalent of clicking an option in the resulting dialogue box that would appear - for example clicking OK or proceed with shutdown?

Thanks in advance for your help
Bob

How about this scenario? We currently shutdown all computers at 8:00pm with no problem. However, I want to be able to have the computers install any updates, if there are any, and then shutdown. How can I do that?