Sound driver. hello sir. i have laptop of MECER co. made in South Africa. in which my small

Question

hello sir. i have laptop of MECER co. made in South Africa. in which my small brother had deleted sound driver. so now there is no sound is coming from my laptop. so how could i get ??? i had try tooooo much......but always i get fail... now only you have to help me to save my laptop....