dual boot - Failed to access Windows 8.1 NTFS partition from Ubuntu 13.10, even after disable fast startup

I am using Ubuntu 13.04, 32 bit and Windows 8.1. When I try to mount Windows 8.1 NTFS Partition it is showing this error message as below. Previously I was using Windows 7, but I have no problem to mount that partition. I tried to follow this answer and do as follows with Windows 8.1

Solution: Windows 8

There is a new feature in Windows 8 called Fast Startup. If this feature is enabled (which it is by default), Windows 8 does not actually completely shutdown when you choose "shutdown". Instead, it does a "hybrid shutdown". This is something like hibernating; it makes booting Windows 8 back up faster. So, you need to disable this feature to be able to shut it down properly, and be able to mount the Windows partitions. To do this, boot into your Windows 8 and:

Note: disabling Fast Startup will most likely make your Windows 8 take a longer time to boot. There are no "exact" numbers, but let's say that if it took you 10 seconds to boot into Windows 8, it will now take you 50 seconds after disabling this feature.

1. Open Control Panel in the small icons view and click on Power Options.



2. Click on Choose what the power buttons do.


3. Click on Change settings that are currently unavailable.


4. Uncheck Turn on fast startup (recommended).

Click on Save changes. Now, shutdown Windows 8 and boot back into Ubuntu. You'll be able to mount without getting errors.

But I can not mount Windows 8.1 partition even after I done this. Can anyone help me, please! The error message is

  Error mounting /dev/sda2 at /media/rashed/Windows 8.1: Command-line `mount -t "ntfs" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,dmask=0077,fmask=0177" "/dev/sda2" "/media/rashed/Windows 8.1"' exited with non-zero exit status 14: Windows is hibernated, refused to mount.

    Failed to mount '/dev/sda2': Operation not permitted
    The NTFS partition is in an unsafe state. Please resume and shutdown
    Windows fully (no hibernation or fast restarting), or mount the volume
    read-only with the 'ro' mount option.

I solved this problem by running powercfg /h off in windows command terminal. This command usually disable windows hibernate permanently. I follow this instruction and now I have full access of windows partition.