# Paraview 5.6.0 (and higher) on Windows 7 platform: openGL problems

**URL:** https://discourse.paraview.org/t/paraview-5-6-0-and-higher-on-windows-7-platform-opengl-problems/2139
**Category:** ParaView Support
**Created:** [June 28, 2019, 6:35pm UTC](https://discourse.paraview.org/t/paraview-5-6-0-and-higher-on-windows-7-platform-opengl-problems/2139 "2019-06-28T18:35:33Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![yek\_irani](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/y/f07891/32.png) [@yek\_irani](https://discourse.paraview.org/u/yek_irani)
#### Post date: [June 28, 2019, 6:35pm UTC](https://discourse.paraview.org/t/paraview-5-6-0-and-higher-on-windows-7-platform-opengl-problems/2139/1 "2019-06-28T18:35:33Z")

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Hello,

Similar to the following topic ([OpenGL problems](https://discourse.paraview.org/t/opengl-problems/729)), I am getting openGL issues (see attachment). I do not have any of these issues when installing and starting Paraview sessions on a Windows 10 platform. Can someone tell me precisely what/where to look for on the Windows 7 and 10 platforms to understand why in one case Paraview fails to start up?

 ![Capture](https://discourse.paraview.org/uploads/default/original/2X/d/d640feb317583cad05bb7d73a0a63c941c96b952.jpeg)

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### Author: ![cory.quammen](https://discourse.paraview.org/user_avatar/discourse.paraview.org/cory.quammen/32/11193_2.png) [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [June 28, 2019, 6:43pm UTC](https://discourse.paraview.org/t/paraview-5-6-0-and-higher-on-windows-7-platform-opengl-problems/2139/2 "2019-06-28T18:43:47Z")

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Basically, it means ParaView was unable to find the graphics library it needs (OpenGL) on your system to run. Do you know if your Windows 7 machine has a graphics card?

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### Author: ![yek\_irani](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/y/f07891/32.png) [@yek\_irani](https://discourse.paraview.org/u/yek_irani)
#### Post date: [June 28, 2019, 8:59pm UTC](https://discourse.paraview.org/t/paraview-5-6-0-and-higher-on-windows-7-platform-opengl-problems/2139/3 "2019-06-28T20:59:46Z")

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Hello Cory,

Thank you for your response. Yes, the Windows 7 machine does have a graphics card. The machine is now several years old, but it houses an NVIDIA Quadro NVS 420. I’ve attached snapshots from Device Manager -\> Display adapters for both the Windows 7 and 10 platforms.  
 ![Windows7](https://discourse.paraview.org/uploads/default/original/2X/6/695571e7a26b99d942d41802a9991694a43b3de2.jpeg) ![Windows10](https://discourse.paraview.org/uploads/default/original/2X/d/d73d23a0d7403a9794d377fa6ce122b24b2dd5b7.jpeg)

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### Author: ![cory.quammen](https://discourse.paraview.org/user_avatar/discourse.paraview.org/cory.quammen/32/11193_2.png) [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [June 28, 2019, 9:14pm UTC](https://discourse.paraview.org/t/paraview-5-6-0-and-higher-on-windows-7-platform-opengl-problems/2139/4 "2019-06-28T21:14:51Z")

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Do you have NVIDIA drivers installed on the system with the NVS 420? While it is a 10-year-old GPU, it supposedly [supports OpenGL 3.3](https://www.techpowerup.com/gpu-specs/quadro-nvs-420.c1448), which should be sufficient.