OS Genuine Windows 7 Home Premium Genuine Windows 7 Professional CPU Intel Core i7-2670QM Processor( 2.2GHz-3.1GHz) Display 15.6" Full HD 1920X1080 LED backlight System Memory 2GB/4GB DDRIII, 2 slots (Max 8GB) Chipset Mobile Intel HM65 Express Chipset Video Graphics Intel HD Graphics 3000 NVIDIA GeForce GT550M 2GB Supports NVIDIA Optimus Technology Hard Disk Drive 500/750GB 2.5" SATA HDD 7200rpm Optical Disk Drive Blu-ray DVD Combo I/O Port USB(3.0)*2, eSATA/USB(2.0) Combo*1, HDMI, D-sub, RJ45, Mic-in, Earphone-out, 4-in-1 Card Reader (SD/MMC/MS/MS Pro), DC-in Jack Audio 1.5 Watt Speaker*4, Woofer speaker*1, Internal Microphone Communications LAN: 10/100/1000Mbps Ethernet Base-T Wireless LAN: 802.11b/g/n Wireless Bluetooth: Bluetooth V3.0 + HS Webcam 1.3 MegaPixel Security Kensington Lock, TPM (optional) Battery Li-ion 6-cell Dimensions 392(W) x 263(D) x 32.1-38.3(H) mm Weight ~2.6kg (w/ODD and 6-cell battery) 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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