An exemplary fixing apparatus is for mounting a hard disk drive having a plurality of holes in sidewalls thereof. The fixing apparatus includes a first fixing plate, a bracket, and a transverse bar. The bracket includes a second fixing plate, and a bezel assembly attached to a first end of the second fixing plate. Each of the first fixing plate and the second fixing plate include a plurality of fixing members formed at inside walls thereof to engage in the holes of the disk drive. The first fixing plate is pivotally attached to a free end of the bezel assembly. One end of the transverse bar is pivotally attached to a second end of the second fixing plate opposite to the first end and the other end of the transverse bar detachably engages with the first fixing plate.