Problem while drag and drop hex file to mbed usb drive

Problem while drag and drop hex file to mbed usb drivehttps://devzone.nordicsemi.com/f/nordic-q-a/4275/problem-while-drag-and-drop-hex-file-to-mbed-usb-driveI have compiled my mbed program and hex file has been downloaded but I am unable to drag and drop my hex file to mbed USB drive. It is saying Not Ejected properly. I tried to eject properly and turned it off and again turned ON but still didn't workeden-USTelligent Community 13Mon, 03 Nov 2014 07:54:22 GMTRE: Problem while drag and drop hex file to mbed usb drivehttps://devzone.nordicsemi.com/thread/15258?ContentTypeID=1Mon, 03 Nov 2014 07:54:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8c83e85c-caed-49da-aca2-7d8cfdd54361Stian Røed Hafskjold<p>Are you sure the file doesn't get uploaded? In a thread on the mbed forum, they say it is expected behaviour, and that the file will get flashed anyway. <a href="https://developer.mbed.org/questions/62/ReadingWriting-to-File-Msg-Disk-was-not-/">developer.mbed.org/.../</a> So, if it doesn't work I suspect something else must be wrong.</p><div style="clear:both;"></div>