Cannot Create Soundtoys Version Root Folder At Soundtoys 5 Link

They may offer a custom installer or patch.

Navigate to the tab and click Environment Variables . Under "User variables", locate both TEMP and TMP . They may offer a custom installer or patch

Ensure the following root folders exist or are not blocked: They may offer a custom installer or patch

The most common culprit is Windows or macOS preventing your DAW from creating directories inside your public folders. On Windows: Close your DAW completely. They may offer a custom installer or patch