no hard disk

im in urgent need of help….i have a hp pavillion dv5000, i tried deleting a virus and now wen i turn my laptop on it does not boot. if i go to setup it has no hard disk,,(it usually said fujitsu. wen i try use the recovery it just say cant find hard disk press f3 to quit….please i dont know what to do and i need my laptop….if there is any1 tht can help me, much appreciated. thanks