To install a new hard disk drive, open up the computer's case and disconnect the old hard drive from either the IDE or SATA interface, then remove the old drive and install the new drive before connecting it to one of the interfaces. A large number of desktop computers have room for two hard disk drives, which means that it might not be necessary to take out the original drive before installing a new one.
Installing a new hard drive will increase the computer's storage capacity. Hard drives can either be internal or external, and every year the drives get more advanced and have more storage space. Installing an external drive normally just requires connecting the drive to the computer via the USB port. Installing internal drives is more complicated.
- Remove the computer's casing
- Disconnect the old hard drive if necessary
- Connect the new hard drive and set it to primary if desired
For a desktop computer, unscrew and remove the casing of the tower where the CPU is located. For a laptop, unscrew the casing on the bottom of the unit.
For a laptop, the old hard drive should be disconnected from either the IDE or the SATA interface. In a desktop computer, there might be space to add another hard drive without disconnecting the old one.
Remove the old hard drive after it has been disconnected, and connect the new one with the appropriate cables. The hard drive will specify whether it should be connected to the IDE or the SATA hard drive. In a desktop computer, jumper pins can be used to set one of the hard drives as the primary hard drive.