Human: How do I install a hard drive in my computer? Assistant: 
Install a Hard Drive
1. Make sure your computer has an expandable hard drive slot or replaceable hard drive.
2. Back up all your data.
3. Purchase a hard drive that fits your needs and is the right size for your computer.
4. Shut down your computer.
5. Remove the side panel on your desktop tower or bottom panel on your laptop.
6. Disconnect the SATA cable and power supply cable from the old hard drive.
7. Remove any screws or the special enclosure holding the old hard drive in place.
8. Place the new hard drive in the enclosure, or hard drive slot.
9. Attach the SATA cable and power supply cable.
10. Secure the hard drive in place with screws.
11. Replace the side or bottom panel on your desktop tower or laptop.
12. Power on your computer.
13. Install a new operating system on your computer.