I don't know if this is only me or someone else has the same problem, but I can never safely remove my USB hard drive. Windows 7 tells me it is used by another program or service. I tried everything I could but I can not identified which service is using the drive. I tried with FAT32 usb drive. I could eject with no problem. I formatted the drive to NTFS and now I have the same problem. Any idea how to fix this ?