Acer Extensa 4420 Hard Drive Dissasembly

First, make sure that the battery lock is turned off.

Then, slide the other battery lock while pulling the battery out.

Unscrew all five screws on the back panel with a Phillips #00 screwdriver

Take a spudger and start to pry open the back panel. Finish prying it open with your hands.

Start by removing these 2 screws.

Then, pull one of the pull tabs left.

With the hard drive out of the computer, we can start disassembling it.

Unscrew these 2 screws with a phillips screwdriver

Then, separate the plastic case from the hard drive in the places indicated.

After, the whole plastic case should come off.

Take the metal plate off with the pull tab indicated.