Hi! I have Windows 8 Pro x64 and Fast Startup doesn't work anymore. A few month ago I installed Ubuntu with Ubuntu Installer for Windows and every time I opened the computer it booted Windows without going through boot menu, and then I disabled Fast Startup.
Half of month ago I reinstalled Ubuntu on another partition and now shows the Grub first (which is good for me). And today I decided to enable Fast Startup and surprisingly it's dead. I have tried to do this from another post in cmd and no luck.
shutdown.exe /s /hybrid /t 3
:((
PS: On other posts I found on the Internet users said that they have installed O&O Defrag and Perfect Disk and those things disabled the feature. In my case, I installed O&O. Could this be the cause?