# Right-click on your desktop, go to "New" and click "Create Shortcut"
# A window will come up. Where it says "Location" enter: shutdown -s -t
# The rest of the location is customizable. After the -t, press space and enter the amount of time you want someone to have until shutdown in seconds with only numbers when it is activated. Press space and enter -c then another space and in quotations, type in a comment that will appear when the computer is shutting down. Click "Next". (example: shutdown -s -t 10 -c "BEGIN SHUTDOWN")
# On the next screen, name your shortcut whatever you want, it will still have the same effect. Click "OK".
# Your computer shutter downer will be on your desktop as whatever you named it. Click to activate it. If done correctly a shutdown or log-off window will come up with the amount of time, your comment, and a bunch of other stuff. You can not abort the shutdown with task manager by trying to close the window or delete the processes.
# To abort- click the Start button on your taskbar and click run. Then type in: shutdown -a