Some administrator of network will meet this issue from user.We have many way to protect USB use from user and steal data.We can make by group policy from domain or install some application . Today i would like to raise up one Application is Call USB security Guard.It has function of data protection. After you install this software you will see data protection tab,in these function have 2 option to protect USB. 1.Allow user use USB but only read USB. 2.Not allow user use USB both read and write. You can download HERE For more info please look below picture.