windows 7 - Create new partition on ssd hard (remove hibernate)

I bought Dell Vostro 3360 notebook with Windows 7

It has 128 GB SSD hard disk, it is already has 4 partitions:
Dell partition, Recovery partition, OS partition, Hibernate partition.
Here is screenshot (Russian language, but I made some marks):

I want to split OS partition, because I need c:\ and d:\ . Reason is that I have a lot of difficulties with administration mode on c:.

So I tried to split OS partition but I already have 4 partitions. Can I remove hibernate partition without consequences? I have Hibernate disabled in settings, but I have hiberfil.sys file on c:\

If I can remove it, how can I do this, I can't do this with standard GUI disk managment tool