HP ProBook 450 G1 Notebook PC - Manual (Page 60)

Using the optional security screw
Use the optional security screw to lock the service door to the bottom of the computer. When not in
use the security screw can be stored inside the battery bay.
To use the security screw:
1. Remove the battery.
CAUTION: Removing a battery that is the sole power source for the computer can cause loss
of information. To prevent loss of information, save your work and shut down the computer
through Windows before removing the battery.
2. Remove the security screw from inside the battery bay (1) and insert it (2) to lock the service
door in place.
NOTE: Refer to the illustration that most closely matches your computer.
50 Chapter 8 Drives