Remove and Replace an internal hard disk

1. Turn off your computer, disconnect the power, and remove your computer’s cover. If you have a laptop, check the information from the manufacturer to find out if there is a panel you can remove to access the hard disk.
2. Unplug all cables connected to the hard disk, and then remove the hard disk. Pay attention to which cables you unplug, since you will plug the same cables into the new hard disk. If there are any screws holding in the hard disk, you'll need a small screwdriver to unscrew them. Many hard disks slide in and out of the case on rails. If you have questions, check the information that came with your computer.
3. Insert the new hard disk and connect it to the same cables that are in the same places as the hard disk you removed. One cable connects the disk to the computer’s power supply, and the other cable connects the disk to the computer’s motherboard.