How to root Xperia Tablet S

     Go to settings > Security > Mark  "Unknown sources"

     Settings > Developer options > Mark USB debugging

1. First of all backup your Xperia Tablet S as there are chances you may loose all apps and data.
2. Download the Rooting Toolkit > Link 1 / 2 / 3 / 4 and extract it. Run it and select Special Mode , press enter. Now connect your tablet, follow the on-screen instructions.