Drivers for Asus XCC550 Nvidia Gforce720M

[Asus XCC550]

Hello everyone, I'm new to this English-speaking forum and I'm from Spain (that's how far I've traveled in my quest to find a solution to this problem). I'll get straight to the point:

I have a laptop with Windows 8 pre-installed, an Asus XCC550 with an integrated Nvidia GeForce 720 graphics card, and I've decided to install Windows Vista 64-bit on it. The drivers have been a nightmare, but I've more or less managed to get it working and access the internet through an external TP-Link adapter.

The last obstacle, which seems insurmountable, is the graphics driver to enable Aero. When the integrated GeForce detects that the operating system is Windows Vista, it simply refuses to work and instead activates the generic VGA drivers, and there's no way (at least for me) to enable Aero.

Here are the hardware details:

ASUS X550CC Laptop (2013)
· Intel Core i7-3537U (Ivy Bridge) Processor
· Intel HM76 Chipset
· Integrated Graphics: Intel HD Graphics 4000
· Dedicated Graphics: NVIDIA GeForce GT 720M (with NVIDIA Optimus technology)
· Wi-Fi: Atheros AR9485 / Realtek (the one we finally got working)
· Audio: Realtek ALC269
· Network: Realtek RTL8168/8111