# Onyx.exe - the application can not be started.

**URL:** <https://forum.obsidiancontrol.com/t/onyx-exe-the-application-can-not-be-started/5095>\
**Category:** Installers and Operating Systems\
**Created:** [September 23, 2018, 10:25am UTC](https://forum.obsidiancontrol.com/t/onyx-exe-the-application-can-not-be-started/5095 "2018-09-23T10:25:19Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![VJS](https://forum.obsidiancontrol.com/user_avatar/forum.obsidiancontrol.com/vjs/32/2820_2.png) [@VJS](https://forum.obsidiancontrol.com/u/VJS)\
**Post date:** [September 23, 2018, 10:25am UTC](https://forum.obsidiancontrol.com/t/onyx-exe-the-application-can-not-be-started/5095/1 "2018-09-23T10:25:19Z")

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After installing Onyx I received the following error:

![Onyx](https://forum.obsidiancontrol.com/uploads/default/original/2X/a/a3efc5c4e4bcc5c0471e6bc2370d84809fcc7478.png)

Running an insider preview build might be the problem here but should not be one. Maybe Onyx demands this specific version of .net, ignoring any newer versions.

![Onyx2](https://forum.obsidiancontrol.com/uploads/default/original/2X/c/c2678b5f4036106bae4c5b8c6d8046de0a09f495.png)

![Onyx3](https://forum.obsidiancontrol.com/uploads/default/original/2X/3/36bc77d331866139959946ddd9768f721f7bf57f.png)

Cheers,  
VJS

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**Author:** ![Matthias](https://forum.obsidiancontrol.com/user_avatar/forum.obsidiancontrol.com/matthias/32/70_2.png) [@Matthias](https://forum.obsidiancontrol.com/u/Matthias)\
**Post date:** [September 23, 2018, 11:54am UTC](https://forum.obsidiancontrol.com/t/onyx-exe-the-application-can-not-be-started/5095/2 "2018-09-23T11:54:50Z")

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Update to the newest insider build. This was a bug from Microsoft and got corrected

> **[Announcing Windows 10 Insider Preview Build 17760 | Windows Experience Blog](https://blogs.windows.com/windowsexperience/2018/09/14/announcing-windows-10-insider-preview-build-17760/#q1Q15haIJDiZtWYD.97)**
>
> Hello Windows Insiders! Today, we are releasing Windows 10 Insider Preview Build 17760 (RS5) to Windows Insiders in the Fast ring. Meeting the challenge of game compatibility The Windows Compatibility Team is pleased to announce that the Windows 10...

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**Author:** ![VJS](https://forum.obsidiancontrol.com/user_avatar/forum.obsidiancontrol.com/vjs/32/2820_2.png) [@VJS](https://forum.obsidiancontrol.com/u/VJS)\
**Post date:** [September 23, 2018, 11:58am UTC](https://forum.obsidiancontrol.com/t/onyx-exe-the-application-can-not-be-started/5095/3 "2018-09-23T11:58:39Z")

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Thanks for your effort to get onto this topic that fast.

Much appreciated 🙂

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**Author:** ![Matthias](https://forum.obsidiancontrol.com/user_avatar/forum.obsidiancontrol.com/matthias/32/70_2.png) [@Matthias](https://forum.obsidiancontrol.com/u/Matthias)\
**Post date:** [September 23, 2018, 12:49pm UTC](https://forum.obsidiancontrol.com/t/onyx-exe-the-application-can-not-be-started/5095/4 "2018-09-23T12:49:38Z")

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Please share if that fixes it.  
I had a lot of problems with the insider preview and rolled back. Not with Onyx but with the file explorer.

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<div class="post-metadata">

**Author:** ![VJS](https://forum.obsidiancontrol.com/user_avatar/forum.obsidiancontrol.com/vjs/32/2820_2.png) [@VJS](https://forum.obsidiancontrol.com/u/VJS)\
**Post date:** [September 23, 2018, 4:20pm UTC](https://forum.obsidiancontrol.com/t/onyx-exe-the-application-can-not-be-started/5095/5 "2018-09-23T16:20:31Z")

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Updating to a newer preview build did indeed fix the problem.

I did not have problems with the file explorer, maybe because I am using the slow channel of the Insider preview.

Cheers