I am experiencing problems with Windows 8's fast startup feature. You see, several softwares do not work properly when I use the fast startup feature to start windows. For example VLC media player doesn't start at all when I use this feature but when I power off (i.e. disconnect the power supply(i'll tell you why I do that)) the computer, and then start Windows, it runs well. Similar is the problem with my internet connection. I use a USB Modem to connect to the internet and I have created a dial-up connection to use that network. It works normally but when I shutdown the computer with fast startup enabled, the next time I start it, I cannot connect to the internet and it says, "the modem is already in use or is incorrectly configured". That's why I disabled this feature. Now, with this feature DISABLED, the computer doesn't shut down AT ALL. It simply shows "Shutting down" with the loading animation (this one:). I left it for several hours one day but it still didn't shut down. I've even tried to force shutdown but in vain. That is why I have no option left except powering off the machine.
What I have inferred is that the system info that gets written into some file when fast startup is enabled is causing all the trouble. When I power it off, Windows doesn't get a chance to write settings into its file, hence it starts afresh.
Any one knows how to solve this problem ? If you need more info, just put a comment.