ASUS X452EA Windows 7 Drivers

ASUS release both Windows 7 and Windows 8 drivers for this model. You can also read the windows 10 upgrade guide asus official support site. So here is the drivers for windows 7 64-bit:

Chipset
AMD Chipset Driver
Download

Audio
Realtek Audio Driver
Download 

LAN/Ethernet
Realtek LAN Driver
Download

Touchpad
ASUS Smart Gesture Driver
Download

Hotkey
ATKACPI and related utilities
Download

Wireless
Choose one base on your specification or test which work for you:
Realtek Wireless LAN : Download
Qualcomm Atheros Wireless LAN : Download


Bluetooth
Choose one base on your specification or test which work for you:
Ralink Bluetooth Driver : Download
Qualcomm Atheros Bluetooth Driver : Download

Graphic Adapter/VGA
ASUS did not list the graphic drivers on their website. SO can can use the latest catalyst drivers from AMD website.
AMD Radeon HD 8210
Latest : catalyst 15.6 Beta : Download from AMD