Installing MacBook Core 2 Duo Hard Drive: Step 1 Use a coin to rotate the battery-locking screw 90 degrees clockwise. /Guide/Repair/MacBook-Core-2-Duo-Hard-Drive/513/all#s2425 Installing MacBook Core 2 Duo Hard Drive: Step 2 Lift the battery out of the computer. /Guide/Repair/MacBook-Core-2-Duo-Hard-Drive/513/all#s2426 Installing MacBook Core 2 Duo Hard Drive: Step 3 Unscrew the three evenly-spaced Phillips screws from along the rear wall of the battery compartment. The screws are captive to the metal memory cover. /Guide/Repair/MacBook-Core-2-Duo-Hard-Drive/513/all#s2427 Installing MacBook Core 2 Duo Hard Drive: Step 4 Rotate the L-shaped memory cover so it clears the battery compartment opening and lift it up and out of the computer. /Guide/Repair/MacBook-Core-2-Duo-Hard-Drive/513/all#s2428 Installing MacBook Core 2 Duo Hard Drive: Step 5 Grasp the white plastic tab attached to the hard drive and pull it to the right, removing the hard drive from the computer. The hard drive goes back into its compartment with the label facing down. /Guide/Repair/MacBook-Core-2-Duo-Hard-Drive/513/all#s2430