Does anyone know how to program your computer to defrag the hard drive every so often? A few months ago, my dad programmed my computer to defrag at 11 pm like every other night, which is insanely annoying and causes my computer to freeze half the time. I can't figure out how to turn the damn thing off, and Windows help is no help. And my dad is away for the week, so I can't ask him (plus, he'd probably lecture me on the importance of defragging even though I already know that stuff, but it doesn't need to defrag practically every other day like my dad set it to.). I'm running Windows 98, by the way.