Question: On a laptop where was previously installed Windows 8.1 I was perfectly able to use the hibernation feature. I have upgraded to Windows 10 and now the hibernation feature is disabled. If I run a powercfg -a command it tells me that the hibernation is not available for a very strange reason to me.
It says, more or less since I am translating the text from another language, that the hibernation file type does not support the hibernation.

Does anybody have any idea of what this means?

I verified and on the root of my C: drive I have a hiberfil.sys if I enable the hibernation via the powercfg -h on and the file is removed if I issue the off command. Strangly the file size is only of 300MB when my installed RAM is 1.5GB.
I still have 50GB of free space and I am using an SSD drive.

Many thanks!

Answer: 
Just to clarify @Manny post since am unable to post a comment.

* Select Command Prompt. Make sure you run as Admin - right click on the command prompt and select Run as administrator
* Type 'powercfg -h off' Press Enter.

```
powercfg -h off

```

If it returns an unexpected error

```
powercfg -h -size off

```
* Type 'powercfg -h on' Press Enter.

```
powercfg -h on

```

If it returns an unexpected error

```
powercfg -h -size on

```
I'm assuming that hibernation is enabled (powercfg -h on)

Open command prompt as admin

Type: shutdown -h

If nothing happens, there are two posibilites:

1. you have not installed all drivers or some of them are invaild (most likly this is the problem)
2. you dont have sufficient free space on system drive