urgent
main ne apne laptop par window 8 ki hui hai.lekin main is main window xp karna chahta hun.jab main window xp ki cd dalta hun to press any key to boot from cd kehta hain.lekin jab woh window ki files load kar ke windows is starting kehta hai to aage se error aa jata hai.000000x0000000xx00000xx0 hard disk problem or virus..jab ke hard disk bhi theek hai aur virus bhi nahien hai.mujhe is ka hal batayen.kese window xp karun.