Problem: When booting from a USB drive you get "Fatal! Inconsistent Data Read" errors. (In my case, after creating a boot drive with YUMI)
Solution: The problem is either the drive is bad or more likely was not formatted correctly. In Windows, open a command prompt and type diskpart. At the DISKPART prompt type list disk. Then type select disk x where x is the number of the disk that corresponds to your USB drive. Then type clean. After that type exit, and go into Disk Management to format as FAT32. Then you can rewrite your data.