# Scaler 2.8 install

**URL:** <https://forum.scalermusic.com/t/scaler-2-8-install/13937>\
**Category:** Scaler 2 Support\
**Tags:** StudioOne\
**Created:** [June 14, 2023, 12:06am UTC](https://forum.scalermusic.com/t/scaler-2-8-install/13937 "2023-06-14T00:06:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Ze3b](https://avatars.discourse-cdn.com/v4/letter/z/4da419/32.png) [@Ze3b](https://forum.scalermusic.com/u/Ze3b)\
**Post date:** [June 14, 2023, 12:06am UTC](https://forum.scalermusic.com/t/scaler-2-8-install/13937/1 "2023-06-14T00:06:42Z")

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I installed scaler 2.8 update and the installer installed the VST 2. But VST 3 and AU re not there in Studio one. Any ideas?

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**Author:** ![Ze3b](https://avatars.discourse-cdn.com/v4/letter/z/4da419/32.png) [@Ze3b](https://forum.scalermusic.com/u/Ze3b)\
**Post date:** [June 15, 2023, 2:57pm UTC](https://forum.scalermusic.com/t/scaler-2-8-install/13937/2 "2023-06-15T14:57:53Z")

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Further to this, I noticed that in my 2.7 instrument I had hidden all but vst3. Scaler audio the same. Thinking that visibility may (long shot) have something to do with it. I made them all visible. And ran the installer again. No luck. The 2.8 vst2 plugin shows up and all the 2.7’s show up. Dang! It’s not a system security issue. Just cannot figure out why vst 2 would install but not AU or Vst3.