You Can Request The Laptop to be Changed to Windows 10 from Windows 7 if it is Possible to be done on model you Desire at the time of Purchase Thank You 
Product Name
dv7-6b55dx
Product Number
A1T53UA#ABA
Microprocessor
2nd generation Intel Core i5-2430M Processor 2.40 GHz with Turbo Boost Technology up to 3.00 GHz
Memory
6GB DDR3 SDRAM (2 DIMM)
Memory Max
Maximum supported = 16GB
Video Graphics
Intel HD Graphics 3000
Hard Drive
320GB 
Multimedia Drive
SuperMulti DVD burner
Display
17.3-inch diagonal HD+ BrightView LED-backlit Display (1600 x 900)
Network Card
10/100/1000 Gigabit Ethernet LAN
Wireless Connectivity
  • 802.11b/g/n WLAN and WiMAX combo card with WiDi (36)
Sound
  • Beats Audio with the HP Triple Bass Reflex Subwoofer
Keyboard
Full-size island-style keyboard with numeric keypad
Pointing Device
Touchpad with multitouch gesture support and on/off button. Illuminated LED touchpad border: press fn + space to turn on or off.
External Ports
  • Digital Media Card Reader for Secure Digital and Multimedia cards
  • 2 SuperSpeed USB 3.0
  • 2 Universal Serial Bus (USB) 2.0
  • 1 HDMI
  • 1 VGA (15-pin)
  • 1 RJ -45 (LAN)
  • 2 Headphone-out
  • 1 Microphone-in
Dimensions
16.38" (L) x 10.83" (W) x 1.24" (min H)/ 1.42" (max H)
Weight
6.72 lbs
Security
  • Kensington MicroSaver lock slot
  • Power-on password
  • Accepts 3rd party security lock devices
Power
  • 65W AC adapter
  • 9-cell 100WHr lithium-ion battery
What's In The Box
HP TrueVision HD Webcam with integrated digital microphone
HP SimplePass with integrated fingerprint reader

Software

Operating System:
Genuine Windows 7 Home Premium (64-bit)