# Opening Processing 3 starts Processing 2

**URL:** <https://discourse.processing.org/t/opening-processing-3-starts-processing-2/34680>\
**Category:** Processing\
**Created:** [January 16, 2022, 8:08pm UTC](https://discourse.processing.org/t/opening-processing-3-starts-processing-2/34680 "2022-01-16T20:08:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![tomatocultivator](https://avatars.discourse-cdn.com/v4/letter/t/ebca7d/32.png) [@tomatocultivator](https://discourse.processing.org/u/tomatocultivator)\
**Post date:** [January 16, 2022, 8:08pm UTC](https://discourse.processing.org/t/opening-processing-3-starts-processing-2/34680/1 "2022-01-16T20:08:09Z")

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I have multiple versions of processing installed. When I try to open processing 3, the PDE that opens up is processing 2. Similarly, when I try to open processing 4, the PDE that opens up is processing 2. Strangely, multiple versions worked before (I was able to run processing 3 and 4). Any ideas as how to fix this? Thank you.

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**Author:** ![micycle](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/micycle/32/201_2.png) [@micycle](https://discourse.processing.org/u/micycle)\
**Post date:** [January 16, 2022, 9:11pm UTC](https://discourse.processing.org/t/opening-processing-3-starts-processing-2/34680/2 "2022-01-16T21:11:18Z")

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Make sure you don’t have a “ghost” Processing 2 process running (check task manager), as Processing will always start up in the version of a currently running instance (see [Can't have Processing 3 and Processing 4 open at same time · Issue #244 · processing/processing4 · GitHub](https://github.com/processing/processing4/issues/244)).