1. Download the ADB Drivers and QemuRoot method files. http://forum.xda-developers.com/show....php?t=1893838
2. Download Binary v17 Method http://forum.xda-developers.com/show....php?t=1886460
3. Download and install the latest java. http://www.java.com/en/ This is a very important step in which allowed me to succesfully root my device.
I recommend uninstalling all drivers in order to start fresh and do a factory reset on your kindle.
1. Install ADB drivers. Extract Qemu Root and Binaryv17 files.
2. Open cmd run as admin and execute runme.bat from binaryv17.
3. Select Method 1 and your kindle should have a screen pop up requesting a restore.
4. Simply tap on Restore on your kindle and it should reboot after that. Kindle will be slow and sluggish. Thats ok.
5. After Binaryv17 is done run qemuroot.bat from Qemuroot method.
6. Choose option 1 to root.
7. Executable should go through different steps in order to root your kindle.
I saw people posting about not being able to root 7.2.2/7.2.3 devices which have not been rooted before. I can confirm it does work if you follow the above steps. The trick that it for me was the installation of JAVA. I kept getting multiple errors when i did not have it installed on my computer. Hope it works for you all.