# 5ttgen: \[ERROR\] Script cannot run in FSL mode on Windows

**URL:** https://community.mrtrix.org/t/5ttgen-error-script-cannot-run-in-fsl-mode-on-windows/281
**Category:** Uncategorized
**Created:** [June 6, 2016, 1:10pm UTC](https://community.mrtrix.org/t/5ttgen-error-script-cannot-run-in-fsl-mode-on-windows/281 "2016-06-06T13:10:49Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![jdtournier](https://community.mrtrix.org/user_avatar/community.mrtrix.org/jdtournier/32/2594_2.png) [@jdtournier](https://community.mrtrix.org/u/jdtournier)
#### Post date: [May 17, 2018, 4:17pm UTC](https://community.mrtrix.org/t/5ttgen-error-script-cannot-run-in-fsl-mode-on-windows/281/6 "2018-05-17T16:17:30Z")

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I’d not heard of the FSLvm, and I’m not surprised it won’t work with MRtrix3. I personally recommend you avoid that approach and use the WSL instead. Note that you’ll need two separate installs of _MRtrix3_ to get the full functionality: one within the WSL (along with FSL, ANTs, etc), and the other within MSYS2 for the graphics (since WSL doesn’t yet support that).

See [this post](https://community.mrtrix.org/t/mrtrix-fsl-ants-on-the-windows-subsystem-for-linux/377?u=jdtournier) for more details, and you’ll also [find lots of discussion around that on this forum](https://community.mrtrix.org/search?q=WSL).

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