How to set up the timing shutdown and cancellation of WIN8 system
First click on the lower left corner of the computer "Start" button, select "Control Panel", as shown in the following image, and then click "System and Security."
Select "Scheduled Tasks" within the administration tool. After you open the Task Scheduler interface, select Create Basic task in the right-hand action area.
In the open Create Basic task interface, fill in the name created. Fill in the "Timed Shutdown" and click "Next".
In the open task trigger interface, you can set the timing of the shutdown according to your own needs. Here I choose "Every day", then click "Next".
In the daily interface, you can set the date and start time of the scheduled shutdown, every few days, and then click Next.