HP ProBook 4446s Notebook-PC - Manual (Page 63)

2. Replace the security screw (4), if desired (see Using the optional security screw on page 42 ).
3. Replace the battery (see Inserting a battery on page 41 ).
4. Turn the computer right-side up, and then reconnect the AC power and external devices to the
computer.
5. Turn on the computer.
Replacing or upgrading the hard drive
CAUTION: To prevent information loss or an unresponsive system:
Shut down the computer before removing the hard drive from the hard drive bay. Do not remove the
hard drive while the computer is on or in the Sleep state.
If you are not sure whether the computer is off, turn the computer on by pressing the power button.
Then shut down the computer through the operating system.
Removing the hard drive
To remove a hard drive:
1. Save your work and shut down the computer.
2. Disconnect AC power and external devices connected to the computer.
3. Turn the computer upside down on a flat surface.
4. Remove the battery (see Removing a battery on page 41 ).
5. Remove the security screw, if using (see Using the optional security screw on page 42 ).
Using hard drives 53