The solution is already in the error message you offer:
> Please resume and shutdown Windows fully (no hibernation or fast restarting), or mount the volume read-only with the 'ro' mount option.

Even if you "fully" poweroff or shutdown the computer, Windows may hilbernate. So just mount the Windows partition as read only (add `ro` flag in the item of the Windows partition in your /etc/fstab file).

PS there're already many questions being asked about this:

http://askubuntu.com/questions/280530/how-do-i-mount-a-hibernated-partition-with-windows-8-in-ubuntu