Materials and tools:
Old hard drive(s)
Cup of coffee (optional)
Step 1: Disassembling hard drive
Using a torx screwdriver. Unscrew all the screws you can see on both sides of the hard-drive.
Step 2: Remove disk
Unscrew the sliding arm and remove. Pull off magnet holding the data arm on.
You should now be able to slide the disks up the spindle and out of the casing. You may have to slide the arm away to remove the disks.