Just follow this link to see the steps.... with pictures
www.androidxda.com/download-root-genius
Step 1: Enable USB Debugging on your Android
Smartphone. To enable USB debugging , Open Settings >
Developers Option > USB Debugging > Tick to Enable.
(Developers Option is hidden for Android 4.2.2 or above, to
show this option Go to Settings > About Phone > Built
Number (Tap on it for 5-8 times).
Step 2: Download and Open Root Genius Application on
your Windows Computer.
Step 3: Once Root Genius Application is launched, connect
your Android device to the computer (with USB Debugging
enabled).
Step 4: Once Your Smartphone is connected successfully to
the computer, Root Genius will automatically detect your
Android Device.
Step 5: Now, Click on the “Root Now ” button to begin the
rooting process.
Step 6: Now, Root Genius will automatically “ Root ” your
Android Device and install the KingUser Application.
Step 7: Now your Android Device is Rooted. To check
whether your phone is rooted correctly, open Applications
Menu, there you will be able to see a new app installed,
called KingUser . If this app exist then it means you have
successfully rooted your device.
Optional : You can also verify that your device is
successfully rooted or not by Root Checker Application.
Keep in Mind :
[*] No data loss process : Your Android Phone Data like
contacts, pictures, videos, music and etc will be not
affected with this method.
[*] Warranty Void : Your Android Device Warranty may
be Void after following the above tutorial.
[*] How to unroot : To unroot your Device, Open
KingUser on your Device > Settings > Remove Root
Permission.
[*] Credits: Root Genius Application was created by
SJRoot (Developer).
[*] If you have tried the above tool to root your Android
device the please let us know if it works or not with
your Device Model Name.