This problem occurs because of the "Quick Launch", which we now turn off the Quick Launch feature, as follows.
1, in the lower left corner right click on the Start menu, and then click on the pop-up menu "Control Panel" open access;
2, in the Control Panel we click "Category" and then enter after we click "Hardware and Sound" option, as shown below;
3, then in the system setup below we find "Power Options"-"Change the function of the power button" and then we find the following figure shows;
4, then we go to "change the currently unavailable settings" and then open the entry, details as shown in the following figure;
5, then we open in the window we click "Shutdown Settings" in the cancellation of the first "enable Quick Start (recommended)", click "Save Changes" can be.
If not selected we first select and then cancel the election, try it.