Don't waste your time. Just like the G750JX that I had before, this G751JY that I have has a serious issue with the keyboard on Windows 7, the keys will type randomly and miss keystrokes all the time, I tried installing the Keyboard Device Filter but that didn't help at all.
This laptop was not made for Windows 7
ALIENWARE 18 LaptopCPU: Intel Core i7-4900MQ CPU @ 3.8 GHz (8MB Cache)
Graphics: Dual GeForce GTX 780M SLI 2x4 GB GDDR5 RAM
Sound: Realtek ALC668 HD Audio with Klipsch Speakers
Memory: 32 GB Kingston HyperX 1866 MHz DDR3 PC3-14900 RAM
Storage: Samsung 850 PRO 256 GB SSD + Samsung 850 PRO 1 TB SSD + Samsung 840 EVO 1 TB mSATA SSD
Screen: Samsung LTM184HL01 18.4" WLED FHD (1920 X 1080) TrueLife Display PLS 16:9 1080p [SDC4C48]
OS: Windows 8.1 (x64)