So, I need to convert a 512 GB SDXC card to FAT32, and I found guiformat.exe, which everyone uses. But when i tried it, it WOULD not format, and i have no idea why that is! I did everything the tutorial said to do, and I didn't mess around with any unneccesary files. I'd love some help, since I haven't gotten and cannot get this program to work. Please and Thanks!