Dell Latitude E6520 Notebook Intel GMA Driver for Windows 7 x86

Fixes:
1) Latitude E6510/6410/5510/5410/4310 and Optiplex 980 move to latest driver stream (15.22)
2) Addresses customer issues that result in desktop corruption and lockups
3) Improved OpenGL and D3D robustness and performance - Added OpenGL 3.1 support
4) Improved motion video playback stability
5) Reduced flashing during boot-up and resume from Standby/Hibernate
6) Improved docking behavior going from one dock display configuration to a different display configuration
7) Improved mode persistence

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Note: Try to set a system restore point before installing a device driver. It will help you restore system if  installed  driver not complete.