Since the laptop was never sold with Windows7, you will have to find the drivers on the hardware manufacturers' websites.
Atheros AR9485WB-EG Wireless Network Adapter
Atheros AR3012 Bluetooth Adapter
Realtek PCIE Card Reader Driver
Realtek PCIe GBE
Realtek HD Audio Driver
Intel Chipset Driver
Intel Management Engine Interface
Intel USB 3.0 eXtensible Host Controller
Intel HD Graphics Family Driver
some models came with an AMD Radeon HD 7550M/7650M
Synaptics PS/2 Port TouchPad