Hi i have windows xp its a 2003 compaq and i just started it up after about 2 years and it was down loading some windows update and told me to unistall windows serv pack 2 and reinstall it again so i tryed to reinstall it and it wouldnt even let me get on the internet or open any thing so i turned it off and that the computer will not boot up to windows it just keeps turning on and off what can i do i tryed to restore it from the start up but it will come up an fatal error. Can you help???