I rather doubted (but can't ignore the possiblity) if it's a hardware problem or not & am therefore posting my thread here instead of in a any other suitable section.

Friend of mine called earlier saying every time he types in any key on the keyboard, be it be alphabetical key, numerical key, function key & whatnot, he get 2 letters appearing in his screen, for example type in "a" gives him "letter a AND letter c" & it happens only with few keys at certain times. This happens in all software i.e. Word, Internet, etc.

He tried restarting his PC but as soon as he types in his password in the welcome screen, he's experiencing the same problem & hence can't get his password typed correctly, making the system stopping him from getting into his Desktop/System.

A rather peculiar problem, I've never heard of & couldn't get much help from researching on Internet & wonder if this is a KNOWN problem & if so, how could it possibly get it sorted out.

1) Getting his keyboard work
2) Getting into the system first by breaking the password on the welcome screen, since EVEN when typing the password, he's getting TWO CHARACTERS when all he types is ONLY ONE.