Removing the Hard Drive:
Follow the procedures in Before Working Inside Your Computer .
Remove the battery.
Remove the screws that secure the hard drive to the computer.
Slide the hard drive out of the computer.
Remove the screw that secures the hard-drive bracket to the hard drive.
Pull the hard-drive bracket out of the hard drive.
Remove the hard-drive isolations from the hard drive.
Installing the Hard Drive:
Install the hard-drive isolations on the hard drive.
Attach the hard-drive bracket to the hard drive.
Tighten the screw that secures the hard-drive bracket to the hard drive.
Slide and insert the hard drive into its slot.
Tighten the screws to secure the hard drive to the computer.
Install the battery.