# Down loaded Scaler3 ok but won't install on my 11 year old Mac Pro version 10.15.7

**URL:** <https://forum.scalermusic.com/t/down-loaded-scaler3-ok-but-wont-install-on-my-11-year-old-mac-pro-version-10-15-7/21263>\
**Category:** Scaler 3 General Discussion\
**Created:** [April 6, 2025, 5:45pm UTC](https://forum.scalermusic.com/t/down-loaded-scaler3-ok-but-wont-install-on-my-11-year-old-mac-pro-version-10-15-7/21263 "2025-04-06T17:45:55Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![George](https://avatars.discourse-cdn.com/v4/letter/g/71e660/32.png) [@George](https://forum.scalermusic.com/u/George)\
**Post date:** [April 6, 2025, 5:45pm UTC](https://forum.scalermusic.com/t/down-loaded-scaler3-ok-but-wont-install-on-my-11-year-old-mac-pro-version-10-15-7/21263/1 "2025-04-06T17:45:55Z")

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When I double click on the folder in finder/downloads it just take me through the install process again and at no point does it ask me to insert my licence number. I have already downloaded and installed Scaler3 on my other computer (not a Mac) and it installed ok but I have a problem with the sound system on that computer. So thought I’d use Scaler3 on my Mac for now.