Changing administrator account to root

[sushanth]

I installed kali 2.0 directly to hdd. While installing there is an option to create a user. I created the user but now the problem is i don't have a root account it self. There is only a administrator account.
Many say admin is almost equal to root but i do not have access to file system. The highest hierarchy is home(in gui).
I can overcome this by sudo -i but still only terminal is root and not the account.
Any way to activate root account???

[Gh0sT.sh]

type "su" in terminal and the default password will be "toor" without quotes
if the toor password dont work hit enter for blank password
please keep us updated

and also check that do you have a healthy /root folder

[sushanth]

Su authentication failed for toor, empty and even my admin account password.
I'm a noob so i don't know how to check if I've a healthy /root partition.
But cd / does work and it does list all the directories.
And I'd chose the all partitions in one ------- default option while installing

[Magnethelm]

During your installation to HDD, after setting the new user was a request to set a password for root.
This password is the one for the "su" command.
"Toor" ist online used in Live-ISO.

[sushanth]

If i remember it correctly when i selected add a user kali didn't prompted me to set root password(or did it???).. Well as i said earlier su authentication failed for all password suggested and i remember. Still my trouble was how to change the user account from administrator to root. Not the terminal. Terminal goes to root when i use sudo -i with my admin password.
S******l@s******l to root @s****l.From terminal i can access all root directories 0,etc,lib,... But my account is admin and i can't open root folders from gui.
I think this has something to do with su login (single user login) feature.
Well I've screwed up big time i killed process 956(maybe??) So my menu has also disappeared.
.local and .config didn't have specified folder to delete.
So i guess I'm gonna login to win 10 format partition holding Kali and do a fresh install this time without creating a user.
Thank you guys

[au10tic]

when installing the latest and greatest 'rolling 2016.1' if you do not enter a root password during the installation process and you just hit next, you will then be prompted to create a new account which can become root by typing any of the sudo commands

@sushanth just try changing the root password;

sudo passwd

and enter the new password for it.