Hello!
The Flash “removable” or pendrives, units can become “fixed disks” eliminating the “removable bit” which is in its internal software. To do this, the simplest way is to use small software (free): [BootIt 1.07 (Lexar)].
Da Results for Lexar USB 2.0 models and other brands. So you can try for USB 3.0 and then you tell us.
You find it in Google, but if not, it is a bit old in my home folder (free), noncommercial public for the Community:
http://filecloud.io/_cpweb34i in alphabetical order with the following name: [USB Flash BootIt 1.07 [P] (Pass 123)].
Regards, Alfred. (Spanish to English by Google).