Windows 10 can be down graded to windows 7 apon request 
Model
BrandLenovo
SeriesIdeaPad
ModelYoga 2 Pro (59RF0579)
Part Number59RF0579
Quick Info
ColorSilver
Operating System Windows 8.1
CPU Intel Core i5-4200U 1.6GHz
Memory 4GB DDR3L
Storage 128GB SSD
Graphics Card Intel HD Graphics 4400
Video Memory Shared memory
CommunicationLAN and WLAN
Other Features360 degree convertible hinge design allows 4 modes
StyleConvertible
TypeMainstream
UsageConsumer
Dimensions (W x D x H)13.0" x 8.7" x 0.61"
Weight3.06lbs
CPU
CPU TypeIntel Core i5 4th Gen
CPU Name Intel Core i5-4200U
Number of Cores Dual-core Processor
CPU Support3MB L3 Cache
Max Turbo Frequency 2.6 GHz
Display
Screen Size13.3"
Touchscreen Yes
Wide Screen Support Yes
Resolution 3200 x 1800
LCD FeaturesIPS LED, 10-point capacitive multi-touch, 16:9 aspect ratio, 350 nits
Operating Systems
Operating SystemWindows 8.1
Graphics
GPU/VPU Intel HD Graphics 4400
Video MemoryShared system memory
Graphic Type Integrated Card
Storage
SSD128 GB
Memory
Memory 4GB
Memory SpeedDDR3L 1600
Memory Spec4GB on board
Max Memory Supported8GB DDR3L onboard. Not user upgradable
Communications
WLAN Intel 7260 802.11 b,g,n WLAN
WiDi SupportedYes
Bluetooth Bluetooth 4.0
Ports
USB 1 x USB 2.0
1 x USB 3.0
HDMI1 x Micro HDMI
Audio Ports1 x Stereo headphones output / mic input combo jack
Audio
Audio2 x 1.5 watts, 2 x digital array mic, Dolby Home Theater v4
Input Device
TouchpadOne-piece multi-touch touchpad
KeyboardAccuType Keyboard
Card Reader2-in-1 card reader (SD, MMC)
Webcam 720p HD
Power
BatteryLi-Polymer 4 cell, 3700 mAh
Battery LifeUp to 8 hours
Dimensions & Weight
Dimensions (W x D x H)13.0" x 8.7" x 0.61"
Weight3.06lbs
Additional Information
Date First AvailableMarch 27, 2014