Step 4: Redsn0w will start the jailbreak process and go through the following three steps: Step 3: After launching Redsn0w, click on the Jailbreak button. Windows users should run Redsn0w as ‘Administrator’ (right-click on the Redsn0w exe and select ‘Run as an Administrator’). Step 2: Double click the Redsn0w zip file and extract the application to the Redsn0w folder and then launch the Redsn0w application. Step 1: Download the latest version of Redsn0w from this link and save it in a folder named “ Redsn0w” on your desktop. You can follow these step-by-step instructions to jailbreak your iPad:
You can refer to this post for instructions on how to backup your iPad.