How to get the hard disk drive out of the gateway mfatxnin nmz 300s

Wow yet another GW.
made year 2002, worth zero value now, and no windows support.

why mess with 17 year old PC of any kind, ?
first google hit
There's a security screw on the back that needs to be removed to allow the front latch to release the side panel. It's the stupidest most confusing case ever. The latch is very hard to see, it's part of the black plastic in the front, just push down on things until you see one move a bit. It's sort of like a car door handle movement.

it only runs XP the virus magnet and zero support now on XP nor VISTA and soon W7 the same, (blink blink gone)

seems GW made many odd duck cases,
made in
Poway, California, in October 2001.
now is made in Asia by ACER.com 2007+ ended 2013 our market.

you may have collectors grade PC, but Gateway, nah.......