HP ProBook 450 G3 Notebook PC - Maintenance and Service Guide

4. If it is necessary to remove the bracket from the optical drive, remove the Phillips PM2.5×4.0 screw (1)
that secures the bracket to the rear of the drive, and then remove the bracket from the drive (2).
Reverse these procedures to install a optical drive.
38 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts