This usually means you have a program or window open that is still referencing that drive letter. Close all open windows, including “My Computer” or Windows Explorer and wait a minute to see if you can safely remove hardware. Some Windows Operating systems seem to erroneously keep files open so if you know the drive is quiet, go ahead and remove it anyway. Windows does this when it thinks there is a program that is using the drive. The program “WhoLockMe” will determine what program is causing the problem. Run the program, doing a “mountvol G: /D” which will remove the drive letter. Once this has been done, you should be able to safely remove the media. The program “WhoLockMe” can be downloaded from http://