# MeshBatch folders appearing in working directory

**URL:** <https://prepomax.discourse.group/t/meshbatch-folders-appearing-in-working-directory/3722>\
**Category:** General Questions\
**Created:** [October 6, 2026, 9:38am UTC](https://prepomax.discourse.group/t/meshbatch-folders-appearing-in-working-directory/3722 "2026-10-06T09:38:25Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Fran](https://avatars.discourse-cdn.com/v4/letter/f/a4c791/32.png) [@Fran](https://prepomax.discourse.group/u/Fran)\
**Post date:** [October 6, 2026, 9:38am UTC](https://prepomax.discourse.group/t/meshbatch-folders-appearing-in-working-directory/3722/1 "2026-10-06T09:38:25Z")

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Hello

Since v2.6.0 or so, there some “MeshBatch” folders appearing in the working directory. They only contain a folder named 0000 that appears to be empty.

What are those folders? Can we delete them? Can we prevent them from appearing?

 ![image](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/6/621fff9362223a96b9a0b7ca4beab3ebb409f95b.png)

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**Author:** ![FEAnalyst](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/feanalyst/32/688_2.png) [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)\
**Post date:** [October 6, 2026, 9:47am UTC](https://prepomax.discourse.group/t/meshbatch-folders-appearing-in-working-directory/3722/2 "2026-10-06T09:47:52Z")

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> [@Fran](#):
>
> Since v2.6.0 or so

I guess that you are actually using v2.6.2 dev version. That’s when a new QuadWild mesher was introduced and may generate some extra files: [A new developer/preview PrePoMax version v2.6.2 has been released - #17 by FEAnalyst](https://prepomax.discourse.group/t/a-new-developer-preview-prepomax-version-v2-6-2-has-been-released/3644/17)

They mostly disappear after meshing and should be safe to delete afterwards.

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<div class="post-metadata">

**Author:** ![Fran](https://avatars.discourse-cdn.com/v4/letter/f/a4c791/32.png) [@Fran](https://prepomax.discourse.group/u/Fran)\
**Post date:** [October 6, 2026, 9:51am UTC](https://prepomax.discourse.group/t/meshbatch-folders-appearing-in-working-directory/3722/3 "2026-10-06T09:51:33Z")

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I am using version 2.6.0

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<div class="post-metadata">

**Author:** ![FEAnalyst](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/feanalyst/32/688_2.png) [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)\
**Post date:** [October 6, 2026, 10:03am UTC](https://prepomax.discourse.group/t/meshbatch-folders-appearing-in-working-directory/3722/4 "2026-10-06T10:03:21Z")

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Ok, I see that they appear for Netgen and Gmsh in v2.6.0 as well. But they normally disappear after successful meshing.

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**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [October 6, 2026, 11:01am UTC](https://prepomax.discourse.group/t/meshbatch-folders-appearing-in-working-directory/3722/5 "2026-10-06T11:01:40Z")

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They are old meshing folders where the meshing failed. You can delete all of them. I will look into solving it.