Download and install MC7 Sleep Timer. You will have an option to select whether you want it to be installed in all user account or you just want to use it on your own.
After the installation is finished, you will find MC7 Sleep Timer located in the Media Center Extras Library. Click on the tile to open the timer and configure your settings. (Or you can find in on newly started programs.)
The MC7 Sleep Timer will open in full screen mode. You can choose to shutdown the PC after 30 or 60 minutes, create a custom length shutdown timer at any 5 minute interval, or select the exact time you want the PC to shutdown. After setting your PC to shutdown, you’ll get an audio confirmation.
To set a custom timer length, scroll to the “Custom timer” option and click right or left on your Media Center remote or, the right or left arrow keys, to choose how many minutes before shutdown.
To schedule a shutdown for a certain time, browse to the “Shutdown at time” button, and scroll right or left with the arrow keys on the keyboard or remote. When you’ve chosen your time, hit “Enter” on the keyboard or “OK” on the remote.
As you can see, this is a simple customization menu. It is easy to use and allows you fast and easy control over the shutdown interval. Should you find yourself wanting to continue enjoying your media beyond the time you set, click Cancel Timer and it will be off.