I have this really old compaq armada 3500 laptop, and i wanted to play this one game that only works on window 95, or 98. and i found out that when i turn my laptop on, the hard drive makes this click sound, and booting is really slow. after putting the pass code, it takes more time to change into the next screen, but after that it says "non-system disk or disk error replace and strike any key when ready", and i am basically stuck from here, does anyone know what problem this might be? and also during this screen, the hard drive makes this annoying high pitch sound.