When you click on the Shut Down option, your computer restarts instead of shutting down.
1. Click Start > Run and type REGEDIT
2. Click the plus sign next to HKEY_LOCAL_MACHINE
then click CrashControl
3. Double-click on AutoReboot on the right side and change the value from 1 to 0.
Close regedit and restart the computer. Now the computer should shut down normally instead of restarting.