My old computer is starting to rust. There are great withe patches on
metalic parts. Someone told me its oxide. It seemed like fungus so I
heated it with hair dryer. Then it started changing from white to red
(like rust).
What is the best way to remove that white/red thing from my computer?
(don't wanna use sand-paper or similar)

How to prevent computer from further rusting/oxidising ?

Please HELP me, this computer means much to me.
If possible, reply to:


TIA