2014-01-13, 17:42
Regarding USB flash drive, please check if it's bootable (if you run some OS from it). If not, then you're good. Next check what filesystem it is formatted to. If it's FAT32, you're good. If it's not (NTFS), try reformat to FAT32. If nothing work, are you sure Windows/Linux can recognize it?
If I helped you, clicking "Thank You" button will be enough.