My dad bought a chinese flash drive off ebay for christmas...and I'm trying to format it to NTFS so I can put files over 4 gb on it. I changed the option in the device manager to optimize for performance and then attempted to format the drive to NTFS. It seems like it goes through the process, then once it's finished, says, "Windows was unable to complete the format." I can format it back to fat32, so I guess the drive isn't corrupted or anything, but I'm not sure what's wrong. Any help would be appreciated.