Hii..When I try and write the .bin file to the Nucleo's USB drive the USB drive momentarily disconnects from windows and then reconnects but no file has been written to the Nucleo. It is as if the Nucleo's board is write protected.

[Tesla DeLorean]

I don't use this method, but it is a faux drive, in that it pretends to be a MSC with FAT File System long enough to accept the file as it writes thru into the STM32's flash space.

I'm not sure it is supposed to allow you to see the .BIN file, but rather something showing a Pass / Fail status.