Here's one: nobody can create a folder anywhere in any Computer named as "con". At Microsoft the whole Team, including Bill Gates, couldn't answer why this happened! (I know why)
Have you guys seen the stupid cloths Bill Gates has, for such a rich guy he really does has a stupid wardrope. I loved it when his Windows 98 systum crashed on Live TV and it popped a Error screen while trying to install a printer or a scanner.