How do you reformat using the NTFS system? I'm only getting the option to reformat in FAT32 and exFAT. When I try exFAT it says it cannot reformat.

 

I don't know why it isn't working for you... might depend on what operating system you are using and what file system is currently in use on your hard drive... Before I posted, I tried to reformat a 4 year old 1gb usb memory stick using NTFS, and it worked. My computer is running Windows 7 and my hard drive is formatted using NTFS currently.