WUP Installer GX2 is basically a Wii U games installer that is based on WUP Installer Mod Y by Yardape and the GUI from Loadiine GX2. It is available in HBL version and channel version (installable version) For best practice, the channel version should be installed in USB storage to avoid errors. And it is better to install just the HBL version. You should be on CFW before trying this tutorial. Look at the for links below to files and other videos. Enjoy the video.
Tutorial 2 From (digiex)