Alienware 15 R2

Hi everyone, Michael here. I have just recently purchased an Alienware 15 R2, The specs are as follows;

Product Description

Processor:

Intel Core 6th Generation i7-6700HQ Processor 2.6GHz Base Frequency (Quad-Core, 6M Cache, up to 3.50 GHz Turbo)

OS:
Windows 10 Home x64

Display:
15.6 inch FHD (1920 x 1080) IPS Anti-Glare 220-nits Display

Video:
NVIDIA® GeForce® GTX 965M with 2GB GDDR5

Memory:
16GB Dual Channel DDR4L at 2133MHz
*upgrade to 32GB +$250
Hard Drive:
128GB M.2 SATA 6Gb/s SSD (Boot) + 1TB 7200RPM SATA 6Gb/s (Storage)

Connectivity:
Killer 1535 802.11ac 2×2 WiFi and Bluetooth 4.1
Killer Networks Gigabit Ethernet NIC

Battery:
8 Cell 92W Hour Battery

Ports
1 Killer E2400 Gigabit Ethernet IPV6
3 SuperSpeed USB 3.0 Ports
1 Thunderbolt™ 3 Port (USB Type-C™ with Support for SuperSpeed USB 10Gbps, 40Gbps Thunderbolt, and DisplayPort)
1 Alienware Graphics Amplifier Port
1 HDMI 2.0 Output

Slots
1 3-in-1 Media Card Reader
1 Noble Lock Port (Cable and Lock Sold Separately)

I really really need to know if it's possible to roll back to windows 7 on this machine, I cannot stand windows 10. I have tried the customization route and just cannot get it right, I just need to know if it's possible, if all the drivers are available & if the lighting & function keys etc will still all work in windows 7.

I have fair experience in formatting computers but this is the first 'flash' computer I've ever owned so I'm a bit nervous about stuffing it up.

Any help much appreciated thank you :)