# PsychoPy (latest version, W10 refuses to launch)

**URL:** <https://discourse.psychopy.org/t/psychopy-latest-version-w10-refuses-to-launch/23326>\
**Category:** Other\
**Created:** [June 3, 2021, 8:39am UTC](https://discourse.psychopy.org/t/psychopy-latest-version-w10-refuses-to-launch/23326 "2021-06-03T08:39:20Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![dagmarfraser](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/dagmarfraser/32/14170_2.png) [@dagmarfraser](https://discourse.psychopy.org/u/dagmarfraser)\
**Post date:** [June 3, 2021, 8:39am UTC](https://discourse.psychopy.org/t/psychopy-latest-version-w10-refuses-to-launch/23326/1 "2021-06-03T08:39:20Z")

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Win10 - was on previous version [2021.1.2]… coding away happily. it crashes when syncing with gitlab. Relaunched… splash appears then disappears without GUI or processes. Install latest version [2021.1.4] assuming i have hosed something. It fails to launch.

“C:\Program Files\PsychoPy3\python.exe” -m psychopy.app.psychopyApp

Results in

_C:\Users\artaxerxes\>“C:\Program Files\PsychoPy3\python.exe” -m psychopy.app.psychopyApp_  
_pygame 1.9.6_  
_Hello from the pygame community. [https://www.pygame.org/contribute.html](https://www.pygame.org/contribute.html)_  
_WARNING:matplotlib.font\_manager:findfont: Font family [’’] not found. Falling back to DejaVu Sans._

This command makes it launch… and everything appears to work…from the PsychoPy instanced from CMD window. If i close this instance it still fails to launch from the standard PyschoPy3 shortcut.

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**Author:** ![dagmarfraser](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/dagmarfraser/32/14170_2.png) [@dagmarfraser](https://discourse.psychopy.org/u/dagmarfraser)\
**Post date:** [June 4, 2021, 10:31am UTC](https://discourse.psychopy.org/t/psychopy-latest-version-w10-refuses-to-launch/23326/2 "2021-06-04T10:31:07Z")

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This… resolved itself? A few reboots later. Leaving it here so others may marvel.

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**Author:** ![dagmarfraser](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/dagmarfraser/32/14170_2.png) [@dagmarfraser](https://discourse.psychopy.org/u/dagmarfraser)\
**Post date:** [June 9, 2021, 9:11am UTC](https://discourse.psychopy.org/t/psychopy-latest-version-w10-refuses-to-launch/23326/3 "2021-06-09T09:11:09Z")

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No - the issue has returned. Fails to launch from the shortcut… lanuches freely from CMD - “C:\Program Files\PsychoPy3\python.exe” -m psychopy.app.psychopyApp

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**Author:** ![windyfeng](https://avatars.discourse-cdn.com/v4/letter/w/d6d6ee/32.png) [@windyfeng](https://discourse.psychopy.org/u/windyfeng)\
**Post date:** [June 21, 2021, 8:37am UTC](https://discourse.psychopy.org/t/psychopy-latest-version-w10-refuses-to-launch/23326/4 "2021-06-21T08:37:55Z")

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Continuing the discussion from [PsychoPy (latest version, W10 refuses to launch)](https://discourse.psychopy.org/t/psychopy-latest-version-w10-refuses-to-launch/23326):  
Hi. I have met the same problem. Have you solved it and how?

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**Author:** ![dagmarfraser](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/dagmarfraser/32/14170_2.png) [@dagmarfraser](https://discourse.psychopy.org/u/dagmarfraser)\
**Post date:** [June 21, 2021, 9:18am UTC](https://discourse.psychopy.org/t/psychopy-latest-version-w10-refuses-to-launch/23326/5 "2021-06-21T09:18:21Z")

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Press **Windows + R**

type **cmd** in the Run box that appears.

in the **terminal window** copy and paste this command;

_“C:\Program Files\PsychoPy3\python.exe” -m psychopy.app.psychopyApp_

…this will either work, or tell you the other reasons it isn’t working!

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**Author:** ![windyfeng](https://avatars.discourse-cdn.com/v4/letter/w/d6d6ee/32.png) [@windyfeng](https://discourse.psychopy.org/u/windyfeng)\
**Post date:** [June 21, 2021, 10:19am UTC](https://discourse.psychopy.org/t/psychopy-latest-version-w10-refuses-to-launch/23326/6 "2021-06-21T10:19:09Z")

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Many thanks for the prompt reply! It works!