Do you have a copy of win XP?If so, simply REFORMAT your hard drive to wipe out ALL data on the drive and then load a fresh copy of windows from your windows cd.Of course if this is a Dell piece of crap, you had best back up your modem and ethernet card drivers first.Dell has a bad habit of using numerous manufacturers for those items and therefor, you need to make SURE you have a copy of a WORKING driver for those before doing a reformat or even a restore with a dell restore disc.The restore disc DOES NOT restore the modem driver for damn sure.I learned the hard way when my dell crashed.Took over a week to find the right driver for their cheesy modem.