Windows 8 Fast Startup feature not available due to lack of guest hibernation support

Hi,

I want to use "Fast Startup" in my Windows 8.1 Update x64 VM, so I can have it available ASAP after launch. Unfortunately, this is what Windows says when I'm using latest Parallels Desktop 9 and my regular VMs:

C:\Windows\system32>powercfg -a
The following sleep states are available on this system:
Standby (S3)

The following sleep states are not available on this system:
Standby (S1)
The system firmware does not support this standby state.

Standby (S2)
The system firmware does not support this standby state.

Hibernate
The system firmware does not support hibernation.

Standby (Connected)
The system firmware does not support this standby state.

Hybrid Sleep
Hibernation is not available.

Fast Startup
Hibernation is not available.

...so I installed trial of Parallels Desktop 10, just for a test reinstalled fresh Windows 8.1 Update x64 with EFI boot this time, I also installed all Windows updates and of course latest Parallels Tools are installed. Still no luck and hibernation is not present. Am I forced to use PD Suspend feature because hibernation is not implemented?