Hi, i have recently reformatted my com but cant find the driver downloads , so currently i have no sound can anyone help me?

drivers:

Intel Corporation 82801G (ICH7 Family) SMBus Controller

Intel Corporation 82801G (ICH7 Family) High Definition Audio

Realtek Semiconductor RTL8168/8111 PCI-E Gigabit Ethernet NIC

 

if possible can u please provide the executive file or tell me how to install it?