Pressing the top of the hard drive bracket down to release it from the rear case requires a substantial amount of force. We recommend laying your iMac stand-side down on a table to avoid knocking it over.
Press the hard drive bracket down toward the bottom edge of your iMac to free it from the rear case, then rotate the top of the drive toward yourself.
Rotate the hard drive toward yourself, then lift it up off its mounting pins.
The hard drive is still connected via the SATA cables.
When reinstalling your hard drive, be careful not to push the rubber grommets through the openings in the chassis with the lower hard drive pins as retrieving them may require logic board removal.
