If you have the Haswell-ULT version of the S7-392, it's possible that you may have to use the Windows 8.1 Intel Managment Engine Interface driver. I'm not 100 percent sure though since I don't have your computer model.
http://community.acer.com/t5/Windows-10/Acer-Aspire-S7-stuck-in-sleep-mode/td-p/415946