OS: Genuine Windows 7 Home Premium, Genuine Windows 7 Professional CPU: 3rd Generation Intel Core i7-3517U Processor(1.9GHz -3.0GHz) Display: 14" HD+ 1600x900 LED backlight System Memory: 2GB/4GB DDRIII SO-DIMM 2 slots (Max 8GB) Chipset: Mobile Intel HM77 Express Chipset Video Graphics: Intel HD Graphics 4000 NVIDIA GeForce GT 640M 2GB Supports NVIDIA Optimus Technology Storage: 128GB mSATA Solid State Drive (m-SSD),750GB, 1TB 2.5" 9.5mm SATA HDD 5400rpm (optional) I/O Port: USB 3.0*2, USB 2.0*2, D-sub, HDMI, RJ45, Mic-in,Earphone-out, SD Card Reader, DC-in Jack, Audio: 2 Watt Speaker*2, Internal Microphone Communications: LAN: 10/100/1000Mbps Ethernet Wireless LAN: 802.11b/g/n Wireless Bluetooth: Bluetooth v4.0 Webcam: 1.3 MegaPixel Security: Kensington Lock Battery: Li-polymer, 4000mAh, 4.2V, 44Wh Dimensions: 339(W) x 233(D) x 18.5~21(H) mm Weight: ~1.59kg (w/ Battery and m-SSD), ~1.69kg (w/ Battery and HDD). Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.
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