flashdrive question

A teacher used a flashdrive for her child to take assignment to the tech lab. The tech lab computer could not read the drive. On another computer in a classroom, the drive could not be read. The flashdrive could be read at home but not now. Teacher need to get to her files on that flashdrive that now does not work. It did work before bringing sto school.

The teacher in her classroom (not the lab) gets the following message when she tries to open the E folder for the drive: “Acess denied”.