If you want Root your phone(only Android), follow this video in an easy way.
youtube
Download IROOT - http://www.mgyun.com/en/getvroot
Note: Sometimes it takes a long to install the drivers of the device, be patient.
You just need to perform some easy steps that are explained in the video.
Step 1 - Turn on USB debugging and unknown sources.
Step 2 - Install your phone's ADB drivers.
Step 3 - Install IROOT.
Step 4 - Connect you phone to your pc using the original USB cable.
Step 5 - Click on the root button.
You are done and now your android is rooted !!