Question: Ok, so I know what hiberfil.sys is, and I want to use hibernation on my laptop.

But I have another hard drive active in my laptop, it's taken from my old one... and I want to get rid of the hiberfil.sys on that drive. But even with admin privileges I can't delete it.

Any ideas?

Answer: 
To delete restore file you can open command prompt with admin privileges and run command

```
powercfg -h off

```

Then reboot, and Windows should automatically delete your `hiberfil.sys`. If it doesn't, you can remove it manually.

Then running

```
powercfg -h on

```

restores sleep and hibernate functionality.

You can start command prompt with admin privileges by starting command prompt (`Windows Key`+`R` (Run), type `cmd`) and then right-clicking command prompt icon on task bar and selecting "Run as administrator".
For forcing remove of hibernation file and mounting it use this:

```
sudo mkdir /media/Windows
sudo ntfs-3g -o remove_hiberfile <device> /media/Windows
sudo umount <device>
sudo mount <device> <mountpoint>

```

Instead of `<device>` use the correct device like /dev/sda4

**Update**

Sorry, I don't know why, but I thought you want to mount it on linux.

So, for removing it you can use a Live-CD, like ubuntu, and execute these command above.