Use this guide to replace the hard drive of the Dell Inspiron 530.
Place the case on its side.
Locate and remove the two 13.1 mm thumbscrews.
Slide the side panel towards the back and remove.
Locate the hard drive.
Disconnect the two cables from the back of the hard drive.
Locate and remove the four 7.8 mm screws with a Phillips #0 screwdriver.
Pull the hard drive out towards the back of computer.