In the past, I have used Windows 8.1, but because the free upgrade deadline was coming. So I had to upgrade to Windows 10 to take a free slot. However, since I have upgraded to Windows 10, my PC does not shut down properly. It always stuck at the shutdown loading screen and it keeps loading forever. The only way I can shut it down is to press and hold the Power button on the case until it shut down. When I power it up in the next time, it always shows me a message that the previous shutdown didn't work properly. Did anyone get this error before? Any suggestions to me?