# Unable to start psychopy after the power accidently cut off

**URL:** <https://discourse.psychopy.org/t/unable-to-start-psychopy-after-the-power-accidently-cut-off/40834>\
**Category:** Builder\
**Created:** [July 17, 2024, 10:16am UTC](https://discourse.psychopy.org/t/unable-to-start-psychopy-after-the-power-accidently-cut-off/40834 "2024-07-17T10:16:54Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![\_D84101247](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/_d84101247/32/39218_2.png) [@\_D84101247](https://discourse.psychopy.org/u/_D84101247)\
**Post date:** [July 17, 2024, 10:16am UTC](https://discourse.psychopy.org/t/unable-to-start-psychopy-after-the-power-accidently-cut-off/40834/1 "2024-07-17T10:16:54Z")

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If this template helps then use it. If not then just delete and start from scratch.

**OS** : Win11  
**PsychoPy version** : psychopy 2024.1.4 and 2024.1.5  
**Standard Standalone? (y/n)** :yes  
**What are you trying to achieve?:**  
to open/start the Psychopy.  
I accidently cut the power of my computer while the psychopy builder was still on, after that I am not able to start the psychopy. There is no flash screen or black screen, it just simply wouldn’t start the application.

**What did you try to make it work?:**  
I have restart the computer , and even reinstall psychopy several times, yet the application is still down.

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**Author:** ![\_D84101247](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/_d84101247/32/39218_2.png) [@\_D84101247](https://discourse.psychopy.org/u/_D84101247)\
**Post date:** [July 18, 2024, 2:27am UTC](https://discourse.psychopy.org/t/unable-to-start-psychopy-after-the-power-accidently-cut-off/40834/2 "2024-07-18T02:27:42Z")

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For update, I tried to open the PsychoPy Experiment (.psyexp) file of my experiment. It pop out a black screen with a bunch of 0x00/0x00.

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**Author:** ![wakecarter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/wakecarter/32/5753_2.png) [@wakecarter](https://discourse.psychopy.org/u/wakecarter)\
**Post date:** [July 18, 2024, 6:10am UTC](https://discourse.psychopy.org/t/unable-to-start-psychopy-after-the-power-accidently-cut-off/40834/3 "2024-07-18T06:10:18Z")

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Does that mean that you have managed to open PsychoPy now but that particular psyexp file is corrupt?

When I can’t open PsychoPy I try deleting C:\Users\morys\AppData\Roaming\psychopy3\appData.cfg

You should be able to find your AppData folder by putting %appdata% into Windows Explorer

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**Author:** ![\_D84101247](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/_d84101247/32/39218_2.png) [@\_D84101247](https://discourse.psychopy.org/u/_D84101247)\
**Post date:** [July 21, 2024, 1:39am UTC](https://discourse.psychopy.org/t/unable-to-start-psychopy-after-the-power-accidently-cut-off/40834/4 "2024-07-21T01:39:56Z")

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It works, thank you so much