I installed the blender after a fresh installation of windows 10. I have all the drivers installed. I have GTX 1060 graphics card. After running the blender, the console blinks and the program does not run. I text In the console blender.exe -d I have such error:

 found bundled python: C: \ Program Files \ Blender Foundation \ Blender \ 2.79 \ 

I'm trying install 2.79a version but 2.79 dosnt run too. Any ideas?

  • 2
    $\begingroup$ Have you updated the drivers? There's some suggestions in this thread that might help: blender.stackexchange.com/questions/61749/… $\endgroup$ Mar 26, 2018 at 16:55
  • $\begingroup$ Are you installing from the installer or the zip? In either case, what happens it you try the other? $\endgroup$
    – gandalf3
    Mar 30, 2018 at 1:12

1 Answer 1


Set this Environment Variable on Windows:
Value: NONE

  1. On your Desktop, right click on the This PC icon and select Properties
  2. Select Advanced system settings from the list on the left
  3. Select Environmental Variables at the bottom
  4. Under System Variables, click New...
  5. Variable Name: CYCLES_OPENCL_TEST
  6. Value: NONE
  7. Click Ok several times to set the variable and close the settings windows
  8. Start Blender without error
  • 1
    $\begingroup$ Hi. I think it would be helpful to explain how the user should test those variables. $\endgroup$ Aug 25, 2018 at 14:48
  • $\begingroup$ I don't understand. There is nothing to test here. $\endgroup$
    – FuzzyPones
    Aug 27, 2018 at 18:40
  • $\begingroup$ I think I meant to say 'set' instead of 'test'. My point is that you haven't told the user how to set the environment variable. $\endgroup$ Aug 27, 2018 at 18:44
  • $\begingroup$ How to set windows variables can be found googling for it. It's publicly available knowledge. $\endgroup$
    – FuzzyPones
    Sep 4, 2018 at 8:06
  • $\begingroup$ Wow, a downvote because i did not exactly do what you want? That's low. $\endgroup$
    – FuzzyPones
    Sep 4, 2018 at 21:26

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