Lenovo W520 Intel Graphics Card not Working

I re installed windows 8 and ever since then my intel graphics card has gone missing. This affects my computer a lot because I am now running on the NVIDIA graphics card which uses up a lot more power. I have tried going on the intel website and doing system check for graphics card install and did the install. I tried doing the install from the lenovo website but it still does not show up. I also did my upgrades on lenovo solutions and yet there was no solution. Please help me, the following are the specs of my computer. When I called lenovo solutions they checked my computer and said my drivers are blocked I need to pay 150$ to fix this issue.

System Information
Machine name: SACHA-TERZIAN
Operating System: Windows 8 Pro 64-bit (6.2, Build 9200) (9200.win8_gdr.130108-1504)
Language: English (Regional Setting: English)
System Manufacturer: LENOVO
System Model: 4270CTO
BIOS: Default System BIOS
Processor: Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz (4 CPUs), ~2.8GHz
Memory: 4096MB RAM
Available OS Memory: 4050MB RAM
Page File: 2574MB used, 2179MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.02.9200.16384 64bit Unicode

Display Devices
Card name: NVIDIA Quadro 1000M
Manufacturer: NVIDIA
Chip type: Quadro 1000M
DAC type: Integrated RAMDAC
Device Type: Full Device
Display Memory: 3768 MB
Dedicated Memory: 1999 MB
Shared Memory: 1768 MB
Current Mode: 1600 x 900 (32 bit) (60Hz)
Monitor Name: ThinkPad Display 1600x900
Monitor Model: unknown
Monitor Id: LEN40B1
Native Mode: 1600 x 900(p) (59.990Hz)
Output Type: Internal
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver File Version: 9.18.0013.1100 (English)
Driver Version:
DDI Version: 11
Feature Levels: 11.0,10.1,10.0,9.3,9.2,9.1
Driver Model: WDDM 1.2
Graphics Preemption: DMA
Compute Preemption: DMA
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More about lenovo w520 intel graphics card working
  1. As far as I know Intel never made any GPU (except integrated ones).
    Just put Nvidias card out and see if your computer goes to windows. If it does, than you still have Intels (i)GPU.

    Hope it helps!
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