You can find your binaries folder in the same way as you did to setup your file path. Once its downloaded, open the folder and move BL2Reborn. Download BL2 Reborn off the nexus by clicking this link. You'll get a notice that Hex Multitool applied patches and you are free to move on to step 2. Once you have done these steps, hit the apply button. Disable sanity check by going to Misc then Disable Sanity Check. You can also set it to other keys on your keyboard but for the purpose of this tutorial, keep it set to F9.
You have now found where your Borderlands 2 is installed on your pc. With the tool open, you need to setup the filepath to your borderlands2. Visit the github page for it here or download the tool that was linked previously. Unzip the entire folder somewhere you won't forget and then run the tool. You can find the direct link to do so here - simply click on the link to download the tool. The very first thing you need to do is download Hex Multitool v1. This set up guide will tell you exactly what to use and when to use it. It is currently out of date and will not be able to do so. If you have already set up Borderlands 2 Reborn and are looking to troubleshoot issues, please see the Troubleshooting section here. This is a guide on how to setup Borderlands 2 Reborn for the first time.