Missing Music Folder

Get rid of the firmware updater. It  runs all the time, and  slows down your pc. Manual installation of the firmware is so easy. Just follow the instructions.

Format the player using the player’s menu- settings, system settings, format. 

Download the latest firmware and manually reinstall it.

http://forums.sandisk.com/t5/SanDisk-Clip-Sport/SanDisk-Clip-Sport-Firmware-1-17-released/td-p/324940